653087431 has 2 divisors, whose sum is σ = 653087432. Its totient is φ = 653087430.

The previous prime is 653087423. The next prime is 653087441. The reversal of 653087431 is 134780356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653087431 - 2³ = 653087423 is a prime.

It is a super-2 number, since 2×653087431² = 853046385060359522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653087441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326543715 + 326543716.

It is an arithmetic number, because the mean of its divisors is an integer number (326543716).

Almost surely, 2^653087431 is an apocalyptic number.

653087431 is a deficient number, since it is larger than the sum of its proper divisors (1).

653087431 is an equidigital number, since it uses as much as digits as its factorization.

653087431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 653087431 is about 25555.5753408136. The cubic root of 653087431 is about 867.6084541354.

It can be divided in two parts, 6530 and 87431, that added together give a triangular number (93961 = T₄₃₃).

The spelling of 653087431 in words is "six hundred fifty-three million, eighty-seven thousand, four hundred thirty-one".