7994161031 has 4 divisors (see below), whose sum is σ = 8144994312. Its totient is φ = 7843327752.

The previous prime is 7994160961. The next prime is 7994161057. The reversal of 7994161031 is 1301614997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1301614997 = 317 ⋅4106041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7994161031 is a prime.

It is a super-2 number, since 2×7994161031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7994161031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7994161531) 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, 75416561 + ... + 75416666.

It is an arithmetic number, because the mean of its divisors is an integer number (2036248578).

Almost surely, 2^7994161031 is an apocalyptic number.

7994161031 is a deficient number, since it is larger than the sum of its proper divisors (150833281).

7994161031 is a wasteful number, since it uses less digits than its factorization.

7994161031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150833280.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 7994161031 is about 89410.0723129111. The cubic root of 7994161031 is about 1999.5133008216.

The spelling of 7994161031 in words is "seven billion, nine hundred ninety-four million, one hundred sixty-one thousand, thirty-one".