73113831 has 36 divisors (see below), whose sum is σ = 123474312. Its totient is φ = 41567904.

The previous prime is 73113827. The next prime is 73113839. The reversal of 73113831 is 13831137.

It is not a de Polignac number, because 73113831 - 2² = 73113827 is a prime.

It is a super-2 number, since 2×73113831² = 10691264566993122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73113795 and 73113804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73113839) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 139536 + ... + 140058.

It is an arithmetic number, because the mean of its divisors is an integer number (3429842).

Almost surely, 2^73113831 is an apocalyptic number.

73113831 is a deficient number, since it is larger than the sum of its proper divisors (50360481).

73113831 is a wasteful number, since it uses less digits than its factorization.

73113831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 850 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 73113831 is about 8550.6626059037. The cubic root of 73113831 is about 418.1510389516.

Adding to 73113831 its reverse (13831137), we get a palindrome (86944968).

The spelling of 73113831 in words is "seventy-three million, one hundred thirteen thousand, eight hundred thirty-one".