149202531 has 12 divisors (see below), whose sum is σ = 216538920. Its totient is φ = 98995680.

The previous prime is 149202517. The next prime is 149202533. The reversal of 149202531 is 135202941.

It is not a de Polignac number, because 149202531 - 2⁶ = 149202467 is a prime.

It is a super-2 number, since 2×149202531² = 44522790513611922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149202495 and 149202504.

It is not an unprimeable number, because it can be changed into a prime (149202533) 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 11 ways as a sum of consecutive naturals, for example, 37386 + ... + 41183.

It is an arithmetic number, because the mean of its divisors is an integer number (18044910).

Almost surely, 2^149202531 is an apocalyptic number.

149202531 is a deficient number, since it is larger than the sum of its proper divisors (67336389).

149202531 is a wasteful number, since it uses less digits than its factorization.

149202531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78786 (or 78783 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 149202531 is about 12214.8487915324. The cubic root of 149202531 is about 530.3860140283.

The spelling of 149202531 in words is "one hundred forty-nine million, two hundred two thousand, five hundred thirty-one".