147989523 has 32 divisors (see below), whose sum is σ = 226540800. Its totient is φ = 85097600.

The previous prime is 147989509. The next prime is 147989549. The reversal of 147989523 is 325989741.

It is not a de Polignac number, because 147989523 - 2¹⁴ = 147973139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147988523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55153 + ... + 57773.

It is an arithmetic number, because the mean of its divisors is an integer number (7079400).

Almost surely, 2^147989523 is an apocalyptic number.

147989523 is a deficient number, since it is larger than the sum of its proper divisors (78551277).

147989523 is a wasteful number, since it uses less digits than its factorization.

147989523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723.

The product of its digits is 544320, while the sum is 48.

The square root of 147989523 is about 12165.0944509280. The cubic root of 147989523 is about 528.9447652517.

The spelling of 147989523 in words is "one hundred forty-seven million, nine hundred eighty-nine thousand, five hundred twenty-three".