3612131 has 4 divisors (see below), whose sum is σ = 3616752. Its totient is φ = 3607512.

The previous prime is 3612121. The next prime is 3612137. The reversal of 3612131 is 1312163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312163 = 29 ⋅45247.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3612131 is a prime.

It is a super-2 number, since 2×3612131² = 26094980722322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3612137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815 + ... + 2808.

It is an arithmetic number, because the mean of its divisors is an integer number (904188).

Almost surely, 2^3612131 is an apocalyptic number.

3612131 is a deficient number, since it is larger than the sum of its proper divisors (4621).

3612131 is an equidigital number, since it uses as much as digits as its factorization.

3612131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620.

The product of its digits is 108, while the sum is 17.

The square root of 3612131 is about 1900.5607067389. The cubic root of 3612131 is about 153.4338434689.

Adding to 3612131 its reverse (1312163), we get a palindrome (4924294).

Subtracting from 3612131 its reverse (1312163), we obtain a cube (2299968 = 132³).

It can be divided in two parts, 36 and 12131, that added together give a cube (12167 = 23³).

The spelling of 3612131 in words is "three million, six hundred twelve thousand, one hundred thirty-one".