88291121 has 2 divisors, whose sum is σ = 88291122. Its totient is φ = 88291120.

The previous prime is 88291097. The next prime is 88291123. The reversal of 88291121 is 12119288.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79852096 + 8439025 = 8936^2 + 2905^2 .

It is a cyclic number.

It is not a de Polignac number, because 88291121 - 2¹⁴ = 88274737 is a prime.

Together with 88291123, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_5123867 and since 88291121 and 5123867 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (88291123) 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, 44145560 + 44145561.

It is an arithmetic number, because the mean of its divisors is an integer number (44145561).

Almost surely, 2^88291121 is an apocalyptic number.

It is an amenable number.

88291121 is a deficient number, since it is larger than the sum of its proper divisors (1).

88291121 is an equidigital number, since it uses as much as digits as its factorization.

88291121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 32.

The square root of 88291121 is about 9396.3355091227. The cubic root of 88291121 is about 445.2859686116.

The spelling of 88291121 in words is "eighty-eight million, two hundred ninety-one thousand, one hundred twenty-one".