137497275 has 72 divisors (see below), whose sum is σ = 264045600. Its totient is φ = 68152320.

The previous prime is 137497249. The next prime is 137497277. The reversal of 137497275 is 572794731.

137497275 is a `hidden beast` number, since 1 + 374 + 9 + 7 + 275 = 666.

It is not a de Polignac number, because 137497275 - 2¹³ = 137489083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 137497275.

It is not an unprimeable number, because it can be changed into a prime (137497277) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 393801 + ... + 394149.

It is an arithmetic number, because the mean of its divisors is an integer number (3667300).

Almost surely, 2^137497275 is an apocalyptic number.

137497275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

137497275 is a deficient number, since it is larger than the sum of its proper divisors (126548325).

137497275 is a wasteful number, since it uses less digits than its factorization.

137497275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 477 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 137497275 is about 11725.9232045925. The cubic root of 137497275 is about 516.1366480532.

The spelling of 137497275 in words is "one hundred thirty-seven million, four hundred ninety-seven thousand, two hundred seventy-five".