151331120 has 20 divisors (see below), whose sum is σ = 351845040. Its totient is φ = 60532416.

The previous prime is 151331111. The next prime is 151331129. The reversal of 151331120 is 21133151.

It is an interprime number because it is at equal distance from previous prime (151331111) and next prime (151331129).

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×151331120² = 45802215760908800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151331129) 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, 945740 + ... + 945899.

It is an arithmetic number, because the mean of its divisors is an integer number (17592252).

Almost surely, 2^151331120 is an apocalyptic number.

151331120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151331120 is an abundant number, since it is smaller than the sum of its proper divisors (200513920).

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

151331120 is a wasteful number, since it uses less digits than its factorization.

151331120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891652 (or 1891646 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 151331120 is about 12301.6714311511. The cubic root of 151331120 is about 532.8963538701.

Adding to 151331120 its reverse (21133151), we get a palindrome (172464271).

The spelling of 151331120 in words is "one hundred fifty-one million, three hundred thirty-one thousand, one hundred twenty".