86313551 has 2 divisors, whose sum is σ = 86313552. Its totient is φ = 86313550.

The previous prime is 86313533. The next prime is 86313587. The reversal of 86313551 is 15531368.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86313551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86313511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43156775 + 43156776.

It is an arithmetic number, because the mean of its divisors is an integer number (43156776).

Almost surely, 2^86313551 is an apocalyptic number.

86313551 is a deficient number, since it is larger than the sum of its proper divisors (1).

86313551 is an equidigital number, since it uses as much as digits as its factorization.

86313551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 86313551 is about 9290.5086513065. The cubic root of 86313551 is about 441.9362858005.

The spelling of 86313551 in words is "eighty-six million, three hundred thirteen thousand, five hundred fifty-one".