88991129 has 2 divisors, whose sum is σ = 88991130. Its totient is φ = 88991128.

The previous prime is 88991113. The next prime is 88991183. The reversal of 88991129 is 92119988.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73960000 + 15031129 = 8600^2 + 3877^2 .

It is a cyclic number.

It is not a de Polignac number, because 88991129 - 2⁴ = 88991113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88991429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44495564 + 44495565.

It is an arithmetic number, because the mean of its divisors is an integer number (44495565).

Almost surely, 2^88991129 is an apocalyptic number.

It is an amenable number.

88991129 is a deficient number, since it is larger than the sum of its proper divisors (1).

88991129 is an equidigital number, since it uses as much as digits as its factorization.

88991129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 47.

The square root of 88991129 is about 9433.5109582806. The cubic root of 88991129 is about 446.4596750754.

The spelling of 88991129 in words is "eighty-eight million, nine hundred ninety-one thousand, one hundred twenty-nine".