149161608 has 64 divisors (see below), whose sum is σ = 424468800. Its totient is φ = 48504960.

The previous prime is 149161603. The next prime is 149161619. The reversal of 149161608 is 806161941.

It is a happy number.

149161608 is a `hidden beast` number, since 1 + 49 + 1 + 6 + 1 + 608 = 666.

It is a super-2 number, since 2×149161608² = 44498370602291328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (149161603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435 + ... + 17277.

It is an arithmetic number, because the mean of its divisors is an integer number (6632325).

Almost surely, 2^149161608 is an apocalyptic number.

149161608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149161608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212234400).

149161608 is an abundant number, since it is smaller than the sum of its proper divisors (275307192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149161608 is a wasteful number, since it uses less digits than its factorization.

149161608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16899 (or 16889 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 149161608 is about 12213.1735433506. The cubic root of 149161608 is about 530.3375184891.

It can be divided in two parts, 149161 and 608, that added together give a square (149769 = 387²).

The spelling of 149161608 in words is "one hundred forty-nine million, one hundred sixty-one thousand, six hundred eight".