2137647245 has 8 divisors (see below), whose sum is σ = 2565517560. Its totient is φ = 1709890560.

The previous prime is 2137647227. The next prime is 2137647257. The reversal of 2137647245 is 5427467312.

It can be written as a sum of positive squares in 4 ways, for example, as 139736041 + 1997911204 = 11821^2 + 44698^2 .

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

It is not a de Polignac number, because 2137647245 - 2¹⁰ = 2137646221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20705 + ... + 68585.

It is an arithmetic number, because the mean of its divisors is an integer number (320689695).

Almost surely, 2^2137647245 is an apocalyptic number.

It is an amenable number.

2137647245 is a deficient number, since it is larger than the sum of its proper divisors (427870315).

2137647245 is an equidigital number, since it uses as much as digits as its factorization.

2137647245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56815.

The product of its digits is 282240, while the sum is 41.

The square root of 2137647245 is about 46234.6974143878. The cubic root of 2137647245 is about 1288.1863110644.

The spelling of 2137647245 in words is "two billion, one hundred thirty-seven million, six hundred forty-seven thousand, two hundred forty-five".