974697121 has 2 divisors, whose sum is σ = 974697122. Its totient is φ = 974697120.

The previous prime is 974697103. The next prime is 974697149. The reversal of 974697121 is 121796479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 691111521 + 283585600 = 26289^2 + 16840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974697121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (974697161) 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, 487348560 + 487348561.

It is an arithmetic number, because the mean of its divisors is an integer number (487348561).

Almost surely, 2^974697121 is an apocalyptic number.

It is an amenable number.

974697121 is a deficient number, since it is larger than the sum of its proper divisors (1).

974697121 is an equidigital number, since it uses as much as digits as its factorization.

974697121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 46.

The square root of 974697121 is about 31220.1396697709. The cubic root of 974697121 is about 991.4935525259.

The spelling of 974697121 in words is "nine hundred seventy-four million, six hundred ninety-seven thousand, one hundred twenty-one".