72261254 has 16 divisors (see below), whose sum is σ = 123596928. Its totient is φ = 31389312.

The previous prime is 72261247. The next prime is 72261307. The reversal of 72261254 is 45216227.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81302 + ... + 82185.

It is an arithmetic number, because the mean of its divisors is an integer number (7724808).

Almost surely, 2^72261254 is an apocalyptic number.

72261254 is a deficient number, since it is larger than the sum of its proper divisors (51335674).

72261254 is a wasteful number, since it uses less digits than its factorization.

72261254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163519.

The product of its digits is 6720, while the sum is 29.

The square root of 72261254 is about 8500.6619742229. The cubic root of 72261254 is about 416.5193333669.

The spelling of 72261254 in words is "seventy-two million, two hundred sixty-one thousand, two hundred fifty-four".