97174720129 has 2 divisors, whose sum is σ = 97174720130. Its totient is φ = 97174720128.

The previous prime is 97174720103. The next prime is 97174720157. The reversal of 97174720129 is 92102747179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51235227904 + 45939492225 = 226352^2 + 214335^2 .

It is a cyclic number.

It is not a de Polignac number, because 97174720129 - 2⁷ = 97174720001 is a prime.

It is not a weakly prime, because it can be changed into another prime (97174720169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48587360064 + 48587360065.

It is an arithmetic number, because the mean of its divisors is an integer number (48587360065).

Almost surely, 2^97174720129 is an apocalyptic number.

It is an amenable number.

97174720129 is a deficient number, since it is larger than the sum of its proper divisors (1).

97174720129 is an equidigital number, since it uses as much as digits as its factorization.

97174720129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 49.

The spelling of 97174720129 in words is "ninety-seven billion, one hundred seventy-four million, seven hundred twenty thousand, one hundred twenty-nine".