73994131 has 4 divisors (see below), whose sum is σ = 74013264. Its totient is φ = 73975000.

The previous prime is 73994119. The next prime is 73994147. The reversal of 73994131 is 13149937.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73994131 - 2¹³ = 73985939 is a prime.

It is a super-2 number, since 2×73994131² = 10950262844890322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73994101) 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 3 ways as a sum of consecutive naturals, for example, 1495 + ... + 12256.

It is an arithmetic number, because the mean of its divisors is an integer number (18503316).

Almost surely, 2^73994131 is an apocalyptic number.

73994131 is a deficient number, since it is larger than the sum of its proper divisors (19133).

73994131 is a wasteful number, since it uses less digits than its factorization.

73994131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19132.

The product of its digits is 20412, while the sum is 37.

The square root of 73994131 is about 8601.9841315827. The cubic root of 73994131 is about 419.8225459718.

The spelling of 73994131 in words is "seventy-three million, nine hundred ninety-four thousand, one hundred thirty-one".