974975147 has 2 divisors, whose sum is σ = 974975148. Its totient is φ = 974975146.

The previous prime is 974975117. The next prime is 974975171. The reversal of 974975147 is 741579479.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 974975147 - 2¹² = 974971051 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (974975107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487487573 + 487487574.

It is an arithmetic number, because the mean of its divisors is an integer number (487487574).

Almost surely, 2^974975147 is an apocalyptic number.

974975147 is a deficient number, since it is larger than the sum of its proper divisors (1).

974975147 is an equidigital number, since it uses as much as digits as its factorization.

974975147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222640, while the sum is 53.

The square root of 974975147 is about 31224.5920229552. The cubic root of 974975147 is about 991.5878159213.

The spelling of 974975147 in words is "nine hundred seventy-four million, nine hundred seventy-five thousand, one hundred forty-seven".