2131607 has 8 divisors (see below), whose sum is σ = 2232576. Its totient is φ = 2032992.

The previous prime is 2131603. The next prime is 2131609. The reversal of 2131607 is 7061312.

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 2131607 - 2² = 2131603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131601) 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, 1418 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (279072).

2^2131607 is an apocalyptic number.

2131607 is a deficient number, since it is larger than the sum of its proper divisors (100969).

2131607 is a wasteful number, since it uses less digits than its factorization.

2131607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 2131607 is about 1460.0023972583. The cubic root of 2131607 is about 128.6971844828.

Adding to 2131607 its reverse (7061312), we get a palindrome (9192919).

The spelling of 2131607 in words is "two million, one hundred thirty-one thousand, six hundred seven".