151231930 has 16 divisors (see below), whose sum is σ = 272772000. Its totient is φ = 60369552.

The previous prime is 151231921. The next prime is 151231943. The reversal of 151231930 is 39132151.

151231930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 151231895 and 151231904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10164 + ... + 20143.

It is an arithmetic number, because the mean of its divisors is an integer number (17048250).

Almost surely, 2^151231930 is an apocalyptic number.

151231930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151231930 is a deficient number, since it is larger than the sum of its proper divisors (121540070).

151231930 is a wasteful number, since it uses less digits than its factorization.

151231930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30813.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 151231930 is about 12297.6392043351. The cubic root of 151231930 is about 532.7798994309.

The spelling of 151231930 in words is "one hundred fifty-one million, two hundred thirty-one thousand, nine hundred thirty".