73115136 has 200 divisors, whose sum is σ = 228750984. Its totient is φ = 23224320.

The previous prime is 73115089. The next prime is 73115209. The reversal of 73115136 is 63151137.

It is a super-2 number, since 2×73115136² = 10691646224596992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1700331 + ... + 1700373.

Almost surely, 2^73115136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73115136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114375492).

73115136 is an abundant number, since it is smaller than the sum of its proper divisors (155635848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73115136 is an equidigital number, since it uses as much as digits as its factorization.

73115136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 89 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 73115136 is about 8550.7389154388. The cubic root of 73115136 is about 418.1535267794.

The spelling of 73115136 in words is "seventy-three million, one hundred fifteen thousand, one hundred thirty-six".