149526161 has 4 divisors (see below), whose sum is σ = 149655024. Its totient is φ = 149397300.

The previous prime is 149526137. The next prime is 149526173. The reversal of 149526161 is 161625941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149526161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149526121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 62675 + ... + 65016.

It is an arithmetic number, because the mean of its divisors is an integer number (37413756).

Almost surely, 2^149526161 is an apocalyptic number.

It is an amenable number.

149526161 is a deficient number, since it is larger than the sum of its proper divisors (128863).

149526161 is a wasteful number, since it uses less digits than its factorization.

149526161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128862.

The product of its digits is 12960, while the sum is 35.

The square root of 149526161 is about 12228.0890166861. The cubic root of 149526161 is about 530.7692176913.

The spelling of 149526161 in words is "one hundred forty-nine million, five hundred twenty-six thousand, one hundred sixty-one".