97141531 has 2 divisors, whose sum is σ = 97141532. Its totient is φ = 97141530.

The previous prime is 97141529. The next prime is 97141537. The reversal of 97141531 is 13514179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97141531 - 2¹ = 97141529 is a prime.

It is a super-2 number, since 2×97141531² = 18872954090047922, which contains 22 as substring.

Together with 97141529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 97141493 and 97141502.

It is not a weakly prime, because it can be changed into another prime (97141537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48570765 + 48570766.

It is an arithmetic number, because the mean of its divisors is an integer number (48570766).

Almost surely, 2^97141531 is an apocalyptic number.

97141531 is a deficient number, since it is larger than the sum of its proper divisors (1).

97141531 is an equidigital number, since it uses as much as digits as its factorization.

97141531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 31.

The square root of 97141531 is about 9856.0403306805. The cubic root of 97141531 is about 459.6934488741.

The spelling of 97141531 in words is "ninety-seven million, one hundred forty-one thousand, five hundred thirty-one".