137192897 has 4 divisors (see below), whose sum is σ = 137382336. Its totient is φ = 137003460.

The previous prime is 137192879. The next prime is 137192899. The reversal of 137192897 is 798291731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137192897 - 2¹⁴ = 137176513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137192899) 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, 93629 + ... + 95082.

It is an arithmetic number, because the mean of its divisors is an integer number (34345584).

Almost surely, 2^137192897 is an apocalyptic number.

It is an amenable number.

137192897 is a deficient number, since it is larger than the sum of its proper divisors (189439).

137192897 is an equidigital number, since it uses as much as digits as its factorization.

137192897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189438.

The product of its digits is 190512, while the sum is 47.

The square root of 137192897 is about 11712.9371636665. The cubic root of 137192897 is about 515.7555090861.

The spelling of 137192897 in words is "one hundred thirty-seven million, one hundred ninety-two thousand, eight hundred ninety-seven".