2137523 has 4 divisors (see below), whose sum is σ = 2143488. Its totient is φ = 2131560.

The previous prime is 2137517. The next prime is 2137547. The reversal of 2137523 is 3257312.

2137523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2137523 - 2⁴ = 2137507 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 1 + 3⁸ + 7² + 5⁹ + 2⁹ + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2408 + ... + 3173.

It is an arithmetic number, because the mean of its divisors is an integer number (535872).

2^2137523 is an apocalyptic number.

2137523 is a deficient number, since it is larger than the sum of its proper divisors (5965).

2137523 is an equidigital number, since it uses as much as digits as its factorization.

2137523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964.

The product of its digits is 1260, while the sum is 23.

The square root of 2137523 is about 1462.0270175342. The cubic root of 2137523 is about 128.8161353125.

The spelling of 2137523 in words is "two million, one hundred thirty-seven thousand, five hundred twenty-three".