2137519 has 4 divisors (see below), whose sum is σ = 2250040. Its totient is φ = 2025000.

The previous prime is 2137517. The next prime is 2137547. The reversal of 2137519 is 9157312.

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

It is a cyclic number.

It is not a de Polignac number, because 2137519 - 2¹ = 2137517 is a prime.

It is a super-2 number, since 2×2137519² = 9137974950722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137517) 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, 56232 + ... + 56269.

It is an arithmetic number, because the mean of its divisors is an integer number (562510).

2^2137519 is an apocalyptic number.

2137519 is a deficient number, since it is larger than the sum of its proper divisors (112521).

2137519 is a wasteful number, since it uses less digits than its factorization.

2137519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112520.

The product of its digits is 1890, while the sum is 28.

The square root of 2137519 is about 1462.0256495698. The cubic root of 2137519 is about 128.8160549602.

The spelling of 2137519 in words is "two million, one hundred thirty-seven thousand, five hundred nineteen".