2137553 has 4 divisors (see below), whose sum is σ = 2331888. Its totient is φ = 1943220.

The previous prime is 2137549. The next prime is 2137571. The reversal of 2137553 is 3557312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2137553 - 2² = 2137549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137153) 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, 97151 + ... + 97172.

It is an arithmetic number, because the mean of its divisors is an integer number (582972).

2^2137553 is an apocalyptic number.

It is an amenable number.

2137553 is a deficient number, since it is larger than the sum of its proper divisors (194335).

2137553 is a wasteful number, since it uses less digits than its factorization.

2137553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194334.

The product of its digits is 3150, while the sum is 26.

The square root of 2137553 is about 1462.0372772265. The cubic root of 2137553 is about 128.8167379518.

The spelling of 2137553 in words is "two million, one hundred thirty-seven thousand, five hundred fifty-three".