72102054 has 16 divisors (see below), whose sum is σ = 144668592. Its totient is φ = 23956608.

The previous prime is 72102053. The next prime is 72102059. The reversal of 72102054 is 45020127.

It is a self number, because there is not a number n which added to its sum of digits gives 72102054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72102053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17319 + ... + 21074.

It is an arithmetic number, because the mean of its divisors is an integer number (9041787).

Almost surely, 2^72102054 is an apocalyptic number.

72102054 is an abundant number, since it is smaller than the sum of its proper divisors (72566538).

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

72102054 is a wasteful number, since it uses less digits than its factorization.

72102054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38711.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 72102054 is about 8491.2928344275. The cubic root of 72102054 is about 416.2132281813.

The spelling of 72102054 in words is "seventy-two million, one hundred two thousand, fifty-four".