2136669 has 8 divisors (see below), whose sum is σ = 2883552. Its totient is φ = 1407120.

The previous prime is 2136661. The next prime is 2136707. The reversal of 2136669 is 9666312.

It is a happy number.

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

It is not a de Polignac number, because 2136669 - 2³ = 2136661 is a prime.

It is a super-2 number, since 2×2136669² = 9130708831122, which contains 22 as substring.

2136669 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136661) 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, 4042 + ... + 4539.

It is an arithmetic number, because the mean of its divisors is an integer number (360444).

2^2136669 is an apocalyptic number.

It is an amenable number.

2136669 is a deficient number, since it is larger than the sum of its proper divisors (746883).

2136669 is an equidigital number, since it uses as much as digits as its factorization.

2136669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667.

The product of its digits is 11664, while the sum is 33.

The square root of 2136669 is about 1461.7349280906. The cubic root of 2136669 is about 128.7989778155.

The spelling of 2136669 in words is "two million, one hundred thirty-six thousand, six hundred sixty-nine".