149161536 has 84 divisors (see below), whose sum is σ = 452724012. Its totient is φ = 46792704.

The previous prime is 149161513. The next prime is 149161577. The reversal of 149161536 is 635161941.

149161536 is a `hidden beast` number, since 1 + 4 + 9 + 1 + 615 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68161536 + 81000000 = 8256^2 + 9000^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 149161536.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2176 + ... + 17408.

Almost surely, 2^149161536 is an apocalyptic number.

149161536 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 149161536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226362006).

149161536 is an abundant number, since it is smaller than the sum of its proper divisors (303562476).

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

149161536 is a wasteful number, since it uses less digits than its factorization.

149161536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15268 (or 15255 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 149161536 is about 12213.1705957135. The cubic root of 149161536 is about 530.3374331581.

The spelling of 149161536 in words is "one hundred forty-nine million, one hundred sixty-one thousand, five hundred thirty-six".