93931121 has 2 divisors, whose sum is σ = 93931122. Its totient is φ = 93931120.

The previous prime is 93931109. The next prime is 93931129. The reversal of 93931121 is 12113939.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92640625 + 1290496 = 9625^2 + 1136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93931121 is a prime.

It is not a weakly prime, because it can be changed into another prime (93931129) 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, 46965560 + 46965561.

It is an arithmetic number, because the mean of its divisors is an integer number (46965561).

Almost surely, 2^93931121 is an apocalyptic number.

It is an amenable number.

93931121 is a deficient number, since it is larger than the sum of its proper divisors (1).

93931121 is an equidigital number, since it uses as much as digits as its factorization.

93931121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 29.

The square root of 93931121 is about 9691.8069006765. The cubic root of 93931121 is about 454.5725099665.

The spelling of 93931121 in words is "ninety-three million, nine hundred thirty-one thousand, one hundred twenty-one".