149275616 has 48 divisors (see below), whose sum is σ = 336825216. Its totient is φ = 63793536.

The previous prime is 149275603. The next prime is 149275627. The reversal of 149275616 is 616572941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103895 + ... + 105321.

It is an arithmetic number, because the mean of its divisors is an integer number (7017192).

Almost surely, 2^149275616 is an apocalyptic number.

149275616 is a gapful number since it is divisible by the number (16) 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 149275616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168412608).

149275616 is an abundant number, since it is smaller than the sum of its proper divisors (187549600).

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

149275616 is a wasteful number, since it uses less digits than its factorization.

149275616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1903 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 149275616 is about 12217.8400709782. The cubic root of 149275616 is about 530.4726008845.

The spelling of 149275616 in words is "one hundred forty-nine million, two hundred seventy-five thousand, six hundred sixteen".