88142491 has 2 divisors, whose sum is σ = 88142492. Its totient is φ = 88142490.

The previous prime is 88142441. The next prime is 88142557. The reversal of 88142491 is 19424188.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88142491 - 2²¹ = 86045339 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88142491.

It is not a weakly prime, because it can be changed into another prime (88142441) 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, 44071245 + 44071246.

It is an arithmetic number, because the mean of its divisors is an integer number (44071246).

Almost surely, 2^88142491 is an apocalyptic number.

88142491 is a deficient number, since it is larger than the sum of its proper divisors (1).

88142491 is an equidigital number, since it uses as much as digits as its factorization.

88142491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 37.

The square root of 88142491 is about 9388.4232435484. The cubic root of 88142491 is about 445.0359622496.

The spelling of 88142491 in words is "eighty-eight million, one hundred forty-two thousand, four hundred ninety-one".