97442519 has 2 divisors, whose sum is σ = 97442520. Its totient is φ = 97442518.

The previous prime is 97442503. The next prime is 97442531. The reversal of 97442519 is 91524479.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97442519 - 2⁴ = 97442503 is a prime.

It is a super-2 number, since 2×97442519² = 18990089018130722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97442119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48721259 + 48721260.

It is an arithmetic number, because the mean of its divisors is an integer number (48721260).

Almost surely, 2^97442519 is an apocalyptic number.

97442519 is a deficient number, since it is larger than the sum of its proper divisors (1).

97442519 is an equidigital number, since it uses as much as digits as its factorization.

97442519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 97442519 is about 9871.2977363668. The cubic root of 97442519 is about 460.1677381340.

The spelling of 97442519 in words is "ninety-seven million, four hundred forty-two thousand, five hundred nineteen".