72047154 has 32 divisors (see below), whose sum is σ = 146764800. Its totient is φ = 23574672.

The previous prime is 72047153. The next prime is 72047167. The reversal of 72047154 is 45174027.

It is not an unprimeable number, because it can be changed into a prime (72047153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98739 + ... + 99465.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^72047154 is an apocalyptic number.

72047154 is an abundant number, since it is smaller than the sum of its proper divisors (74717646).

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

72047154 is a wasteful number, since it uses less digits than its factorization.

72047154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 72047154 is about 8488.0594955502. The cubic root of 72047154 is about 416.1075635623.

It can be divided in two parts, 720 and 47154, that added together give a palindrome (47874).

The spelling of 72047154 in words is "seventy-two million, forty-seven thousand, one hundred fifty-four".