2137639285 has 8 divisors (see below), whose sum is σ = 2568507480. Its totient is φ = 1707884544.

The previous prime is 2137639249. The next prime is 2137639303. The reversal of 2137639285 is 5829367312.

It can be written as a sum of positive squares in 4 ways, for example, as 148996 + 2137490289 = 386^2 + 46233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2137639285 - 2⁹ = 2137638773 is a prime.

It is a super-2 number, since 2×2137639285² = 9139003425550622450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274132 + ... + 281821.

It is an arithmetic number, because the mean of its divisors is an integer number (321063435).

Almost surely, 2^2137639285 is an apocalyptic number.

It is an amenable number.

2137639285 is a deficient number, since it is larger than the sum of its proper divisors (430868195).

2137639285 is an equidigital number, since it uses as much as digits as its factorization.

2137639285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556727.

The product of its digits is 544320, while the sum is 46.

The square root of 2137639285 is about 46234.6113317718. The cubic root of 2137639285 is about 1288.1847121140.

The spelling of 2137639285 in words is "two billion, one hundred thirty-seven million, six hundred thirty-nine thousand, two hundred eighty-five".