72574215 has 16 divisors (see below), whose sum is σ = 132707328. Its totient is φ = 33176736.

The previous prime is 72574213. The next prime is 72574217. The reversal of 72574215 is 51247527.

It is an interprime number because it is at equal distance from previous prime (72574213) and next prime (72574217).

It is not a de Polignac number, because 72574215 - 2¹ = 72574213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72574213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345487 + ... + 345696.

It is an arithmetic number, because the mean of its divisors is an integer number (8294208).

Almost surely, 2^72574215 is an apocalyptic number.

72574215 is a deficient number, since it is larger than the sum of its proper divisors (60133113).

72574215 is a wasteful number, since it uses less digits than its factorization.

72574215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691198.

The product of its digits is 19600, while the sum is 33.

The square root of 72574215 is about 8519.0501231064. The cubic root of 72574215 is about 417.1197776562.

The spelling of 72574215 in words is "seventy-two million, five hundred seventy-four thousand, two hundred fifteen".