72501126 has 16 divisors (see below), whose sum is σ = 149680128. Its totient is φ = 23387400.

The previous prime is 72501113. The next prime is 72501193. The reversal of 72501126 is 62110527.

It is a junction number, because it is equal to n+sod(n) for n = 72501096 and 72501105.

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 7 ways as a sum of consecutive naturals, for example, 194710 + ... + 195081.

It is an arithmetic number, because the mean of its divisors is an integer number (9355008).

Almost surely, 2^72501126 is an apocalyptic number.

72501126 is an abundant number, since it is smaller than the sum of its proper divisors (77179002).

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

72501126 is a wasteful number, since it uses less digits than its factorization.

72501126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389827.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 72501126 is about 8514.7593037032. The cubic root of 72501126 is about 416.9797044565.

It can be divided in two parts, 72501 and 126, that added together give a palindrome (72627).

The spelling of 72501126 in words is "seventy-two million, five hundred one thousand, one hundred twenty-six".