150831400 has 24 divisors (see below), whose sum is σ = 350683470. Its totient is φ = 60332480.

The previous prime is 150831397. The next prime is 150831409. The reversal of 150831400 is 4138051.

It can be written as a sum of positive squares in 3 ways, for example, as 74338884 + 76492516 = 8622^2 + 8746^2 .

It is a super-2 number, since 2×150831400² = 45500222451920000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (150831409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376879 + ... + 377278.

Almost surely, 2^150831400 is an apocalyptic number.

150831400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150831400 is an abundant number, since it is smaller than the sum of its proper divisors (199852070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

150831400 is a wasteful number, since it uses less digits than its factorization.

150831400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754173 (or 754164 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 150831400 is about 12281.3435747071. The cubic root of 150831400 is about 532.3091368550.

Adding to 150831400 its reverse (4138051), we get a palindrome (154969451).

The spelling of 150831400 in words is "one hundred fifty million, eight hundred thirty-one thousand, four hundred".