151535131 has 4 divisors (see below), whose sum is σ = 165311064. Its totient is φ = 137759200.

The previous prime is 151535129. The next prime is 151535141. The reversal of 151535131 is 131535151.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151535131 - 2¹ = 151535129 is a prime.

It is a super-2 number, since 2×151535131² = 45925791854374322, 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 = 151535096 and 151535105.

It is not an unprimeable number, because it can be changed into a prime (151535141) 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, 6887950 + ... + 6887971.

It is an arithmetic number, because the mean of its divisors is an integer number (41327766).

Almost surely, 2^151535131 is an apocalyptic number.

151535131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

151535131 is a deficient number, since it is larger than the sum of its proper divisors (13775933).

151535131 is a wasteful number, since it uses less digits than its factorization.

151535131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13775932.

The product of its digits is 1125, while the sum is 25.

The square root of 151535131 is about 12309.9606416918. The cubic root of 151535131 is about 533.1357139801.

The spelling of 151535131 in words is "one hundred fifty-one million, five hundred thirty-five thousand, one hundred thirty-one".