72265158 has 48 divisors (see below), whose sum is σ = 185122080. Its totient is φ = 19934208.

The previous prime is 72265153. The next prime is 72265163. The reversal of 72265158 is 85156227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72265153) and next prime (72265163).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72265153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6235 + ... + 13542.

It is an arithmetic number, because the mean of its divisors is an integer number (3856710).

Almost surely, 2^72265158 is an apocalyptic number.

72265158 is an abundant number, since it is smaller than the sum of its proper divisors (112856922).

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

72265158 is a wasteful number, since it uses less digits than its factorization.

72265158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19821 (or 19818 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 72265158 is about 8500.8916002970. The cubic root of 72265158 is about 416.5268342156.

The spelling of 72265158 in words is "seventy-two million, two hundred sixty-five thousand, one hundred fifty-eight".