2136690 has 24 divisors (see below), whose sum is σ = 5555628. Its totient is φ = 569760.

The previous prime is 2136661. The next prime is 2136707. The reversal of 2136690 is 966312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1962801 + 173889 = 1401^2 + 417^2 .

It is a super-2 number, since 2×2136690² = 9130888312200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11781 + ... + 11960.

2^2136690 is an apocalyptic number.

2136690 is an abundant number, since it is smaller than the sum of its proper divisors (3418938).

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

2136690 is a wasteful number, since it uses less digits than its factorization.

2136690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23754 (or 23751 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2136690 is about 1461.7421113179. The cubic root of 2136690 is about 128.7993997760.

It can be divided in two parts, 213 and 6690, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 2136690 in words is "two million, one hundred thirty-six thousand, six hundred ninety".