297880137 has 24 divisors (see below), whose sum is σ = 456285960. Its totient is φ = 186616320.

The previous prime is 297880127. The next prime is 297880139. The reversal of 297880137 is 731088792.

It can be written as a sum of positive squares in 4 ways, for example, as 47734281 + 250145856 = 6909^2 + 15816^2 .

It is not a de Polignac number, because 297880137 - 2¹¹ = 297878089 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 297880092 and 297880101.

It is not an unprimeable number, because it can be changed into a prime (297880139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142939 + ... + 145007.

It is an arithmetic number, because the mean of its divisors is an integer number (19011915).

Almost surely, 2^297880137 is an apocalyptic number.

It is an amenable number.

297880137 is a deficient number, since it is larger than the sum of its proper divisors (158405823).

297880137 is a wasteful number, since it uses less digits than its factorization.

297880137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033 (or 3030 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 297880137 is about 17259.2044138773. The cubic root of 297880137 is about 667.8524368676.

The spelling of 297880137 in words is "two hundred ninety-seven million, eight hundred eighty thousand, one hundred thirty-seven".