149916931 has 8 divisors (see below), whose sum is σ = 159174720. Its totient is φ = 140707968.

The previous prime is 149916919. The next prime is 149916937. The reversal of 149916931 is 139619941.

149916931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149916931 - 2⁹ = 149916419 is a prime.

It is a super-2 number, since 2×149916931² = 44950172400917522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149916937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5776 + ... + 18253.

It is an arithmetic number, because the mean of its divisors is an integer number (19896840).

Almost surely, 2^149916931 is an apocalyptic number.

149916931 is a deficient number, since it is larger than the sum of its proper divisors (9257789).

149916931 is a wasteful number, since it uses less digits than its factorization.

149916931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24413.

The product of its digits is 52488, while the sum is 43.

The square root of 149916931 is about 12244.0569665450. The cubic root of 149916931 is about 531.2311842748.

The spelling of 149916931 in words is "one hundred forty-nine million, nine hundred sixteen thousand, nine hundred thirty-one".