2397902137 has 4 divisors (see below), whose sum is σ = 2401814500. Its totient is φ = 2393989776.

The previous prime is 2397902123. The next prime is 2397902141. The reversal of 2397902137 is 7312097932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2876416 + 2395025721 = 1696^2 + 48939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2397902137 - 2¹⁹ = 2397377849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2397902093 and 2397902102.

It is not an unprimeable number, because it can be changed into a prime (2397902167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1955262 + ... + 1956487.

It is an arithmetic number, because the mean of its divisors is an integer number (600453625).

Almost surely, 2^2397902137 is an apocalyptic number.

It is an amenable number.

2397902137 is a deficient number, since it is larger than the sum of its proper divisors (3912363).

2397902137 is an equidigital number, since it uses as much as digits as its factorization.

2397902137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912362.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 2397902137 is about 48968.3789500939. The cubic root of 2397902137 is about 1338.4756812728.

The spelling of 2397902137 in words is "two billion, three hundred ninety-seven million, nine hundred two thousand, one hundred thirty-seven".