149432531 has 2 divisors, whose sum is σ = 149432532. Its totient is φ = 149432530.

The previous prime is 149432501. The next prime is 149432551. The reversal of 149432531 is 135234941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149432531 - 2¹⁴ = 149416147 is a prime.

It is a super-2 number, since 2×149432531² = 44660162642131922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149432501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74716265 + 74716266.

It is an arithmetic number, because the mean of its divisors is an integer number (74716266).

Almost surely, 2^149432531 is an apocalyptic number.

149432531 is a deficient number, since it is larger than the sum of its proper divisors (1).

149432531 is an equidigital number, since it uses as much as digits as its factorization.

149432531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 149432531 is about 12224.2599366996. The cubic root of 149432531 is about 530.6584092148.

The spelling of 149432531 in words is "one hundred forty-nine million, four hundred thirty-two thousand, five hundred thirty-one".