134569531 has 2 divisors, whose sum is σ = 134569532. Its totient is φ = 134569530.

The previous prime is 134569451. The next prime is 134569537. The reversal of 134569531 is 135965431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134569531 - 2¹⁷ = 134438459 is a prime.

It is a super-2 number, since 2×134569531² = 36217917347119922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134569537) 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, 67284765 + 67284766.

It is an arithmetic number, because the mean of its divisors is an integer number (67284766).

Almost surely, 2^134569531 is an apocalyptic number.

134569531 is a deficient number, since it is larger than the sum of its proper divisors (1).

134569531 is an equidigital number, since it uses as much as digits as its factorization.

134569531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The square root of 134569531 is about 11600.4108116911. The cubic root of 134569531 is about 512.4469503686.

It can be divided in two parts, 1345 and 69531, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 134569531 in words is "one hundred thirty-four million, five hundred sixty-nine thousand, five hundred thirty-one".