7912131 has 8 divisors (see below), whose sum is σ = 10577424. Its totient is φ = 5260800.

The previous prime is 7912103. The next prime is 7912133. The reversal of 7912131 is 1312197.

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

It is not a de Polignac number, because 7912131 - 2⁶ = 7912067 is a prime.

It is a super-2 number, since 2×7912131² = 125203633922322, which contains 22 as substring.

7912131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7912133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2086 + ... + 4491.

It is an arithmetic number, because the mean of its divisors is an integer number (1322178).

Almost surely, 2^7912131 is an apocalyptic number.

7912131 is a deficient number, since it is larger than the sum of its proper divisors (2665293).

7912131 is a wasteful number, since it uses less digits than its factorization.

7912131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981.

The product of its digits is 378, while the sum is 24.

The square root of 7912131 is about 2812.8510447587. The cubic root of 7912131 is about 199.2650609645.

The spelling of 7912131 in words is "seven million, nine hundred twelve thousand, one hundred thirty-one".