147458857 has 16 divisors (see below), whose sum is σ = 181802880. Its totient is φ = 116468352.

The previous prime is 147458821. The next prime is 147458863. The reversal of 147458857 is 758854741.

It is not a de Polignac number, because 147458857 - 2¹⁵ = 147426089 is a prime.

It is a super-2 number, since 2×147458857² = 43488229015492898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147458857.

It is not an unprimeable number, because it can be changed into a prime (147458887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72618 + ... + 74620.

It is an arithmetic number, because the mean of its divisors is an integer number (11362680).

Almost surely, 2^147458857 is an apocalyptic number.

It is an amenable number.

147458857 is a deficient number, since it is larger than the sum of its proper divisors (34344023).

147458857 is a wasteful number, since it uses less digits than its factorization.

147458857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832.

The product of its digits is 1254400, while the sum is 49.

The square root of 147458857 is about 12143.2638528527. The cubic root of 147458857 is about 528.3117718404.

The spelling of 147458857 in words is "one hundred forty-seven million, four hundred fifty-eight thousand, eight hundred fifty-seven".