145543839 has 16 divisors (see below), whose sum is σ = 231424512. Its totient is φ = 79551648.

The previous prime is 145543831. The next prime is 145543859. The reversal of 145543839 is 938345541.

It is not a de Polignac number, because 145543839 - 2³ = 145543831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145543839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145543831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150184 + ... + 151149.

It is an arithmetic number, because the mean of its divisors is an integer number (14464032).

Almost surely, 2^145543839 is an apocalyptic number.

145543839 is a deficient number, since it is larger than the sum of its proper divisors (85880673).

145543839 is a wasteful number, since it uses less digits than its factorization.

145543839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301366.

The product of its digits is 259200, while the sum is 42.

The square root of 145543839 is about 12064.1551299708. The cubic root of 145543839 is about 526.0147737854.

The spelling of 145543839 in words is "one hundred forty-five million, five hundred forty-three thousand, eight hundred thirty-nine".