88572181 has 2 divisors, whose sum is σ = 88572182. Its totient is φ = 88572180.

The previous prime is 88572173. The next prime is 88572203. The reversal of 88572181 is 18127588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51969681 + 36602500 = 7209^2 + 6050^2 .

It is a cyclic number.

It is not a de Polignac number, because 88572181 - 2³ = 88572173 is a prime.

It is a super-2 number, since 2×88572181² = 15690062494193522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88572101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44286090 + 44286091.

It is an arithmetic number, because the mean of its divisors is an integer number (44286091).

Almost surely, 2^88572181 is an apocalyptic number.

It is an amenable number.

88572181 is a deficient number, since it is larger than the sum of its proper divisors (1).

88572181 is an equidigital number, since it uses as much as digits as its factorization.

88572181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35840, while the sum is 40.

The square root of 88572181 is about 9411.2794560570. The cubic root of 88572181 is about 445.7579658976.

The spelling of 88572181 in words is "eighty-eight million, five hundred seventy-two thousand, one hundred eighty-one".