72365151 has 4 divisors (see below), whose sum is σ = 96486872. Its totient is φ = 48243432.

The previous prime is 72365143. The next prime is 72365177. The reversal of 72365151 is 15156327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15156327 = 3 ⋅5052109.

It is not a de Polignac number, because 72365151 - 2³ = 72365143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72365551) 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, 12060856 + ... + 12060861.

It is an arithmetic number, because the mean of its divisors is an integer number (24121718).

Almost surely, 2^72365151 is an apocalyptic number.

72365151 is a deficient number, since it is larger than the sum of its proper divisors (24121721).

72365151 is a wasteful number, since it uses less digits than its factorization.

72365151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24121720.

The product of its digits is 6300, while the sum is 30.

The square root of 72365151 is about 8506.7708914723. The cubic root of 72365151 is about 416.7188611593.

The spelling of 72365151 in words is "seventy-two million, three hundred sixty-five thousand, one hundred fifty-one".