151235231 has 16 divisors (see below), whose sum is σ = 185030400. Its totient is φ = 120719808.

The previous prime is 151235219. The next prime is 151235233. The reversal of 151235231 is 132532151.

It is a happy number.

151235231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 151235231 - 2⁶ = 151235167 is a prime.

It is a super-2 number, since 2×151235231² = 45744190191246722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151235197 and 151235206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151235233) 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, 1790 + ... + 17483.

It is an arithmetic number, because the mean of its divisors is an integer number (11564400).

Almost surely, 2^151235231 is an apocalyptic number.

151235231 is a deficient number, since it is larger than the sum of its proper divisors (33795169).

151235231 is a wasteful number, since it uses less digits than its factorization.

151235231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19358.

The product of its digits is 900, while the sum is 23.

The square root of 151235231 is about 12297.7734163547. The cubic root of 151235231 is about 532.7837758029.

Adding to 151235231 its reverse (132532151), we get a palindrome (283767382).

The spelling of 151235231 in words is "one hundred fifty-one million, two hundred thirty-five thousand, two hundred thirty-one".