152215717 has 4 divisors (see below), whose sum is σ = 152244576. Its totient is φ = 152186860.

The previous prime is 152215711. The next prime is 152215727. The reversal of 152215717 is 717512251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 152215717 - 2³ = 152215709 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 (152215711) 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, 4009 + ... + 17902.

It is an arithmetic number, because the mean of its divisors is an integer number (38061144).

Almost surely, 2^152215717 is an apocalyptic number.

It is an amenable number.

152215717 is a deficient number, since it is larger than the sum of its proper divisors (28859).

152215717 is an equidigital number, since it uses as much as digits as its factorization.

152215717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28858.

The product of its digits is 4900, while the sum is 31.

The square root of 152215717 is about 12337.5733837737. The cubic root of 152215717 is about 533.9326751428.

Adding to 152215717 its reverse (717512251), we get a palindrome (869727968).

The spelling of 152215717 in words is "one hundred fifty-two million, two hundred fifteen thousand, seven hundred seventeen".