137748897 has 32 divisors (see below), whose sum is σ = 239756160. Its totient is φ = 77060160.

The previous prime is 137748887. The next prime is 137748907. The reversal of 137748897 is 798847731.

137748897 is a `hidden beast` number, since 1 + 3 + 77 + 488 + 97 = 666.

It is an interprime number because it is at equal distance from previous prime (137748887) and next prime (137748907).

It is not a de Polignac number, because 137748897 - 2⁴ = 137748881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137748847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13978 + ... + 21699.

It is an arithmetic number, because the mean of its divisors is an integer number (7492380).

Almost surely, 2^137748897 is an apocalyptic number.

It is an amenable number.

137748897 is a deficient number, since it is larger than the sum of its proper divisors (102007263).

137748897 is a wasteful number, since it uses less digits than its factorization.

137748897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35710 (or 35704 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 137748897 is about 11736.6476048316. The cubic root of 137748897 is about 516.4513020320.

The spelling of 137748897 in words is "one hundred thirty-seven million, seven hundred forty-eight thousand, eight hundred ninety-seven".