97542541 has 2 divisors, whose sum is σ = 97542542. Its totient is φ = 97542540.

The previous prime is 97542499. The next prime is 97542547. The reversal of 97542541 is 14524579.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51696100 + 45846441 = 7190^2 + 6771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97542541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97542541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97542547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48771270 + 48771271.

It is an arithmetic number, because the mean of its divisors is an integer number (48771271).

Almost surely, 2^97542541 is an apocalyptic number.

It is an amenable number.

97542541 is a deficient number, since it is larger than the sum of its proper divisors (1).

97542541 is an equidigital number, since it uses as much as digits as its factorization.

97542541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 97542541 is about 9876.3627414145. The cubic root of 97542541 is about 460.3251340310.

The spelling of 97542541 in words is "ninety-seven million, five hundred forty-two thousand, five hundred forty-one".