149340931 has 4 divisors (see below), whose sum is σ = 157201000. Its totient is φ = 141480864.

The previous prime is 149340929. The next prime is 149340941. The reversal of 149340931 is 139043941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139043941 = 347 ⋅400703.

It is a cyclic number.

It is not a de Polignac number, because 149340931 - 2¹ = 149340929 is a prime.

It is a super-2 number, since 2×149340931² = 44605427343893522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149340941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3930006 + ... + 3930043.

It is an arithmetic number, because the mean of its divisors is an integer number (39300250).

Almost surely, 2^149340931 is an apocalyptic number.

149340931 is a deficient number, since it is larger than the sum of its proper divisors (7860069).

149340931 is an equidigital number, since it uses as much as digits as its factorization.

149340931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7860068.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 149340931 is about 12220.5127142849. The cubic root of 149340931 is about 530.5499583855.

It can be divided in two parts, 1493 and 40931, that added together give a palindrome (42424).

The spelling of 149340931 in words is "one hundred forty-nine million, three hundred forty thousand, nine hundred thirty-one".