2136520 has 32 divisors (see below), whose sum is σ = 4965120. Its totient is φ = 826560.

The previous prime is 2136487. The next prime is 2136527. The reversal of 2136520 is 256312.

It is a happy number.

2136520 is nontrivially palindromic in base 11.

It is not an unprimeable number, because it can be changed into a prime (2136527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379 + ... + 2101.

It is an arithmetic number, because the mean of its divisors is an integer number (155160).

2^2136520 is an apocalyptic number.

2136520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2136520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2482560).

2136520 is an abundant number, since it is smaller than the sum of its proper divisors (2828600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2136520 is a wasteful number, since it uses less digits than its factorization.

2136520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2136520 is about 1461.6839603690. The cubic root of 2136520 is about 128.7959838260.

The spelling of 2136520 in words is "two million, one hundred thirty-six thousand, five hundred twenty".