72155095 has 8 divisors (see below), whose sum is σ = 86893776. Its totient is φ = 57518976.

The previous prime is 72155093. The next prime is 72155113. The reversal of 72155095 is 59055127.

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

It is a cyclic number.

It is not a de Polignac number, because 72155095 - 2¹ = 72155093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72155095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72155093) 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, 24082 + ... + 26911.

It is an arithmetic number, because the mean of its divisors is an integer number (10861722).

Almost surely, 2^72155095 is an apocalyptic number.

72155095 is a deficient number, since it is larger than the sum of its proper divisors (14738681).

72155095 is a wasteful number, since it uses less digits than its factorization.

72155095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51281.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 72155095 is about 8494.4155184450. The cubic root of 72155095 is about 416.3152638997.

The spelling of 72155095 in words is "seventy-two million, one hundred fifty-five thousand, ninety-five".