145500039 has 12 divisors (see below), whose sum is σ = 210371616. Its totient is φ = 96905472.

The previous prime is 145500029. The next prime is 145500071. The reversal of 145500039 is 930005541.

It is not a de Polignac number, because 145500039 - 2⁵ = 145500007 is a prime.

It is a super-2 number, since 2×145500039² = 42340522698003042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145499985 and 145500021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145500029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2599 + ... + 17255.

It is an arithmetic number, because the mean of its divisors is an integer number (17530968).

Almost surely, 2^145500039 is an apocalyptic number.

145500039 is a deficient number, since it is larger than the sum of its proper divisors (64871577).

145500039 is a wasteful number, since it uses less digits than its factorization.

145500039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15766 (or 15763 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 145500039 is about 12062.3396984167. The cubic root of 145500039 is about 525.9620021514.

The spelling of 145500039 in words is "one hundred forty-five million, five hundred thousand, thirty-nine".