101497860491 has 2 divisors, whose sum is σ = 101497860492. Its totient is φ = 101497860490.

The previous prime is 101497860481. The next prime is 101497860587. The reversal of 101497860491 is 194068794101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101497860491 is a prime.

It is a super-4 number, since 4×101497860491⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (101497860481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50748930245 + 50748930246.

It is an arithmetic number, because the mean of its divisors is an integer number (50748930246).

Almost surely, 2^101497860491 is an apocalyptic number.

101497860491 is a deficient number, since it is larger than the sum of its proper divisors (1).

101497860491 is an equidigital number, since it uses as much as digits as its factorization.

101497860491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 101497860491 in words is "one hundred one billion, four hundred ninety-seven million, eight hundred sixty thousand, four hundred ninety-one".