88142557 has 2 divisors, whose sum is σ = 88142558. Its totient is φ = 88142556.

The previous prime is 88142491. The next prime is 88142563. The reversal of 88142557 is 75524188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76405081 + 11737476 = 8741^2 + 3426^2 .

It is a cyclic number.

It is not a de Polignac number, because 88142557 - 2¹¹ = 88140509 is a prime.

It is a super-2 number, since 2×88142557² = 15538220708996498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88142357) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44071278 + 44071279.

It is an arithmetic number, because the mean of its divisors is an integer number (44071279).

Almost surely, 2^88142557 is an apocalyptic number.

It is an amenable number.

88142557 is a deficient number, since it is larger than the sum of its proper divisors (1).

88142557 is an equidigital number, since it uses as much as digits as its factorization.

88142557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89600, while the sum is 40.

The square root of 88142557 is about 9388.4267585150. The cubic root of 88142557 is about 445.0360733287.

The spelling of 88142557 in words is "eighty-eight million, one hundred forty-two thousand, five hundred fifty-seven".