72193154 has 8 divisors (see below), whose sum is σ = 118134288. Its totient is φ = 32815060.

The previous prime is 72193129. The next prime is 72193157. The reversal of 72193154 is 45139127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72193154.

It is not an unprimeable number, because it can be changed into a prime (72193157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640732 + ... + 1640775.

It is an arithmetic number, because the mean of its divisors is an integer number (14766786).

Almost surely, 2^72193154 is an apocalyptic number.

72193154 is a deficient number, since it is larger than the sum of its proper divisors (45941134).

72193154 is a wasteful number, since it uses less digits than its factorization.

72193154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281520.

The product of its digits is 7560, while the sum is 32.

The square root of 72193154 is about 8496.6554596500. The cubic root of 72193154 is about 416.3884477253.

The spelling of 72193154 in words is "seventy-two million, one hundred ninety-three thousand, one hundred fifty-four".