2137553249 has 4 divisors (see below), whose sum is σ = 2301980436. Its totient is φ = 1973126064.

The previous prime is 2137553239. The next prime is 2137553251. The reversal of 2137553249 is 9423557312.

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 782209024 + 1355344225 = 27968^2 + 36815^2 .

It is not a de Polignac number, because 2137553249 - 2⁸ = 2137552993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137553239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82213574 + ... + 82213599.

It is an arithmetic number, because the mean of its divisors is an integer number (575495109).

Almost surely, 2^2137553249 is an apocalyptic number.

It is an amenable number.

2137553249 is a deficient number, since it is larger than the sum of its proper divisors (164427187).

2137553249 is a wasteful number, since it uses less digits than its factorization.

2137553249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164427186.

The product of its digits is 226800, while the sum is 41.

The square root of 2137553249 is about 46233.6808939111. The cubic root of 2137553249 is about 1288.1674295369.

The spelling of 2137553249 in words is "two billion, one hundred thirty-seven million, five hundred fifty-three thousand, two hundred forty-nine".