147854857 has 4 divisors (see below), whose sum is σ = 149880340. Its totient is φ = 145829376.

The previous prime is 147854851. The next prime is 147854867. The reversal of 147854857 is 758458741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37100281 + 110754576 = 6091^2 + 10524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147854857 is a prime.

It is a super-2 number, since 2×147854857² = 43722117476980898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147854857.

It is not an unprimeable number, because it can be changed into a prime (147854851) 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, 1012632 + ... + 1012777.

It is an arithmetic number, because the mean of its divisors is an integer number (37470085).

Almost surely, 2^147854857 is an apocalyptic number.

It is an amenable number.

147854857 is a deficient number, since it is larger than the sum of its proper divisors (2025483).

147854857 is an equidigital number, since it uses as much as digits as its factorization.

147854857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025482.

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

The square root of 147854857 is about 12159.5582567789. The cubic root of 147854857 is about 528.7842753035.

The spelling of 147854857 in words is "one hundred forty-seven million, eight hundred fifty-four thousand, eight hundred fifty-seven".