72506126 has 16 divisors (see below), whose sum is σ = 135596160. Its totient is φ = 28249080.

The previous prime is 72506087. The next prime is 72506131. The reversal of 72506126 is 62160527.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235256 + ... + 235563.

It is an arithmetic number, because the mean of its divisors is an integer number (8474760).

Almost surely, 2^72506126 is an apocalyptic number.

72506126 is a deficient number, since it is larger than the sum of its proper divisors (63090034).

72506126 is a wasteful number, since it uses less digits than its factorization.

72506126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470839.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 72506126 is about 8515.0529064710. The cubic root of 72506126 is about 416.9892898276.

The spelling of 72506126 in words is "seventy-two million, five hundred six thousand, one hundred twenty-six".