97099136137 has 4 divisors (see below), whose sum is σ = 98690925316. Its totient is φ = 95507346960.

The previous prime is 97099136111. The next prime is 97099136161. The reversal of 97099136137 is 73163199079.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6765227001 + 90333909136 = 82251^2 + 300556^2 .

It is a cyclic number.

It is not a de Polignac number, because 97099136137 - 2⁷ = 97099136009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97099136177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795894498 + ... + 795894619.

It is an arithmetic number, because the mean of its divisors is an integer number (24672731329).

Almost surely, 2^97099136137 is an apocalyptic number.

It is an amenable number.

97099136137 is a deficient number, since it is larger than the sum of its proper divisors (1591789179).

97099136137 is a wasteful number, since it uses less digits than its factorization.

97099136137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591789178.

The product of its (nonzero) digits is 1928934, while the sum is 55.

The spelling of 97099136137 in words is "ninety-seven billion, ninety-nine million, one hundred thirty-six thousand, one hundred thirty-seven".