73151256 has 64 divisors (see below), whose sum is σ = 189889920. Its totient is φ = 23466240.

The previous prime is 73151233. The next prime is 73151263. The reversal of 73151256 is 65215137.

It is a super-2 number, since 2×73151256² = 10702212508755072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74851 + ... + 75821.

It is an arithmetic number, because the mean of its divisors is an integer number (2967030).

Almost surely, 2^73151256 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 73151256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94944960).

73151256 is an abundant number, since it is smaller than the sum of its proper divisors (116738664).

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

73151256 is a wasteful number, since it uses less digits than its factorization.

73151256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1092 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 73151256 is about 8552.8507528192. The cubic root of 73151256 is about 418.2223735314. Note that the first 3 decimals are identical.

The spelling of 73151256 in words is "seventy-three million, one hundred fifty-one thousand, two hundred fifty-six".