149250931 has 2 divisors, whose sum is σ = 149250932. Its totient is φ = 149250930.

The previous prime is 149250917. The next prime is 149251013. The reversal of 149250931 is 139052941.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149250931 is a prime.

It is a super-2 number, since 2×149250931² = 44551680808733522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149250901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74625465 + 74625466.

It is an arithmetic number, because the mean of its divisors is an integer number (74625466).

Almost surely, 2^149250931 is an apocalyptic number.

149250931 is a deficient number, since it is larger than the sum of its proper divisors (1).

149250931 is an equidigital number, since it uses as much as digits as its factorization.

149250931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 149250931 is about 12216.8298261046. The cubic root of 149250931 is about 530.4433586940.

The spelling of 149250931 in words is "one hundred forty-nine million, two hundred fifty thousand, nine hundred thirty-one".