97001539 has 2 divisors, whose sum is σ = 97001540. Its totient is φ = 97001538.

The previous prime is 97001521. The next prime is 97001543. The reversal of 97001539 is 93510079.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97001539 - 2²⁵ = 63447107 is a prime.

It is not a weakly prime, because it can be changed into another prime (97001579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48500769 + 48500770.

It is an arithmetic number, because the mean of its divisors is an integer number (48500770).

Almost surely, 2^97001539 is an apocalyptic number.

97001539 is a deficient number, since it is larger than the sum of its proper divisors (1).

97001539 is an equidigital number, since it uses as much as digits as its factorization.

97001539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 97001539 is about 9848.9359323736. The cubic root of 97001539 is about 459.4725191888.

The spelling of 97001539 in words is "ninety-seven million, one thousand, five hundred thirty-nine".