2136490 has 8 divisors (see below), whose sum is σ = 3845700. Its totient is φ = 854592.

The previous prime is 2136487. The next prime is 2136527. The reversal of 2136490 is 946312.

It can be written as a sum of positive squares in 2 ways, for example, as 2111209 + 25281 = 1453^2 + 159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106815 + ... + 106834.

2^2136490 is an apocalyptic number.

2136490 is a deficient number, since it is larger than the sum of its proper divisors (1709210).

2136490 is a wasteful number, since it uses less digits than its factorization.

2136490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213656.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2136490 is about 1461.6736981967. The cubic root of 2136490 is about 128.7953809925.

The spelling of 2136490 in words is "two million, one hundred thirty-six thousand, four hundred ninety".