2136261 has 8 divisors (see below), whose sum is σ = 2860704. Its totient is φ = 1418000.

The previous prime is 2136247. The next prime is 2136287. The reversal of 2136261 is 1626312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2136261 - 2⁷ = 2136133 is a prime.

It is a super-2 number, since 2×2136261² = 9127222120242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136221) 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, 666 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (357588).

2^2136261 is an apocalyptic number.

It is an amenable number.

2136261 is a deficient number, since it is larger than the sum of its proper divisors (724443).

2136261 is a wasteful number, since it uses less digits than its factorization.

2136261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091.

The product of its digits is 432, while the sum is 21.

The square root of 2136261 is about 1461.5953612406. The cubic root of 2136261 is about 128.7907791773.

The spelling of 2136261 in words is "two million, one hundred thirty-six thousand, two hundred sixty-one".