147372857 has 4 divisors (see below), whose sum is σ = 147397200. Its totient is φ = 147348516.

The previous prime is 147372821. The next prime is 147372859. The reversal of 147372857 is 758273741.

147372857 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 758273741 = 383 ⋅1979827.

It is a cyclic number.

It is not a de Polignac number, because 147372857 - 2⁶ = 147372793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147372859) 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, 4778 + ... + 17820.

It is an arithmetic number, because the mean of its divisors is an integer number (36849300).

Almost surely, 2^147372857 is an apocalyptic number.

It is an amenable number.

147372857 is a deficient number, since it is larger than the sum of its proper divisors (24343).

147372857 is a wasteful number, since it uses less digits than its factorization.

147372857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24342.

The product of its digits is 329280, while the sum is 44.

The square root of 147372857 is about 12139.7222785367. The cubic root of 147372857 is about 528.2090456768.

The spelling of 147372857 in words is "one hundred forty-seven million, three hundred seventy-two thousand, eight hundred fifty-seven".