245797137 has 6 divisors (see below), whose sum is σ = 355040322. Its totient is φ = 163864752.

The previous prime is 245797117. The next prime is 245797141. The reversal of 245797137 is 731797542.

245797137 is a `hidden beast` number, since 2 + 4 + 579 + 71 + 3 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 244578321 + 1218816 = 15639^2 + 1104^2 .

It is not a de Polignac number, because 245797137 - 2¹⁰ = 245796113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245797092 and 245797101.

It is not an unprimeable number, because it can be changed into a prime (245797117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13655388 + ... + 13655405.

It is an arithmetic number, because the mean of its divisors is an integer number (59173387).

Almost surely, 2^245797137 is an apocalyptic number.

It is an amenable number.

245797137 is a deficient number, since it is larger than the sum of its proper divisors (109243185).

245797137 is a wasteful number, since it uses less digits than its factorization.

245797137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27310799 (or 27310796 counting only the distinct ones).

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

The square root of 245797137 is about 15677.9187713166. The cubic root of 245797137 is about 626.4103718746.

The spelling of 245797137 in words is "two hundred forty-five million, seven hundred ninety-seven thousand, one hundred thirty-seven".