152172757 has 4 divisors (see below), whose sum is σ = 166006656. Its totient is φ = 138338860.

The previous prime is 152172737. The next prime is 152172803. The reversal of 152172757 is 757271251.

152172757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 152172757 - 2¹¹ = 152170709 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 (152172737) 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, 6916933 + ... + 6916954.

It is an arithmetic number, because the mean of its divisors is an integer number (41501664).

Almost surely, 2^152172757 is an apocalyptic number.

It is an amenable number.

152172757 is a deficient number, since it is larger than the sum of its proper divisors (13833899).

152172757 is a wasteful number, since it uses less digits than its factorization.

152172757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13833898.

The product of its digits is 34300, while the sum is 37.

The square root of 152172757 is about 12335.8322378346. The cubic root of 152172757 is about 533.8824396252.

The spelling of 152172757 in words is "one hundred fifty-two million, one hundred seventy-two thousand, seven hundred fifty-seven".