5135531 has 2 divisors, whose sum is σ = 5135532. Its totient is φ = 5135530.

The previous prime is 5135527. The next prime is 5135539. The reversal of 5135531 is 1355315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5135531 - 2² = 5135527 is a prime.

It is a super-2 number, since 2×5135531² = 52747357303922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5135497 and 5135506.

It is not a weakly prime, because it can be changed into another prime (5135539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2567765 + 2567766.

It is an arithmetic number, because the mean of its divisors is an integer number (2567766).

Almost surely, 2^5135531 is an apocalyptic number.

5135531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5135531 is an equidigital number, since it uses as much as digits as its factorization.

5135531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1125, while the sum is 23.

The square root of 5135531 is about 2266.1709997262. The cubic root of 5135531 is about 172.5288728538.

The spelling of 5135531 in words is "five million, one hundred thirty-five thousand, five hundred thirty-one".