974125091 has 2 divisors, whose sum is σ = 974125092. Its totient is φ = 974125090.

The previous prime is 974125073. The next prime is 974125093. The reversal of 974125091 is 190521479.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974125091 is a prime.

Together with 974125093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (974125093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487062545 + 487062546.

It is an arithmetic number, because the mean of its divisors is an integer number (487062546).

Almost surely, 2^974125091 is an apocalyptic number.

974125091 is a deficient number, since it is larger than the sum of its proper divisors (1).

974125091 is an equidigital number, since it uses as much as digits as its factorization.

974125091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 974125091 is about 31210.9770914017. The cubic root of 974125091 is about 991.2995520741.

The spelling of 974125091 in words is "nine hundred seventy-four million, one hundred twenty-five thousand, ninety-one".