72152471 has 8 divisors (see below), whose sum is σ = 76796064. Its totient is φ = 67553280.

The previous prime is 72152467. The next prime is 72152489. The reversal of 72152471 is 17425127.

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 72152471 - 2² = 72152467 is a prime.

It is a super-3 number, since 3×72152471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72152461) 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, 7715 + ... + 14276.

It is an arithmetic number, because the mean of its divisors is an integer number (9599508).

Almost surely, 2^72152471 is an apocalyptic number.

72152471 is a deficient number, since it is larger than the sum of its proper divisors (4643593).

72152471 is a wasteful number, since it uses less digits than its factorization.

72152471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22201.

The product of its digits is 3920, while the sum is 29.

The square root of 72152471 is about 8494.2610626234. The cubic root of 72152471 is about 416.3102172499.

Adding to 72152471 its reverse (17425127), we get a palindrome (89577598).

The spelling of 72152471 in words is "seventy-two million, one hundred fifty-two thousand, four hundred seventy-one".