147157145 has 4 divisors (see below), whose sum is σ = 176588580. Its totient is φ = 117725712.

The previous prime is 147157133. The next prime is 147157169. The reversal of 147157145 is 541751741.

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 114404416 + 32752729 = 10696^2 + 5723^2 .

It is a cyclic number.

It is not a de Polignac number, because 147157145 - 2²⁶ = 80048281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14715710 + ... + 14715719.

It is an arithmetic number, because the mean of its divisors is an integer number (44147145).

Almost surely, 2^147157145 is an apocalyptic number.

It is an amenable number.

147157145 is a deficient number, since it is larger than the sum of its proper divisors (29431435).

147157145 is an equidigital number, since it uses as much as digits as its factorization.

147157145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29431434.

The product of its digits is 19600, while the sum is 35.

The square root of 147157145 is about 12130.8344725332. The cubic root of 147157145 is about 527.9512038334.

The spelling of 147157145 in words is "one hundred forty-seven million, one hundred fifty-seven thousand, one hundred forty-five".