151900731 has 16 divisors (see below), whose sum is σ = 227145600. Its totient is φ = 100318824.

The previous prime is 151900709. The next prime is 151900733. The reversal of 151900731 is 137009151.

It is a happy number.

151900731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151900731 - 2⁵ = 151900699 is a prime.

It is a super-2 number, since 2×151900731² = 46147664156668722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 151900695 and 151900704.

It is not an unprimeable number, because it can be changed into a prime (151900733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23401 + ... + 29178.

It is an arithmetic number, because the mean of its divisors is an integer number (14196600).

Almost surely, 2^151900731 is an apocalyptic number.

151900731 is a deficient number, since it is larger than the sum of its proper divisors (75244869).

151900731 is a wasteful number, since it uses less digits than its factorization.

151900731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52695 (or 52689 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 151900731 is about 12324.8014588471. The cubic root of 151900731 is about 533.5641248105.

Adding to 151900731 its reverse (137009151), we get a palindrome (288909882).

The spelling of 151900731 in words is "one hundred fifty-one million, nine hundred thousand, seven hundred thirty-one".