180139125 has 32 divisors (see below), whose sum is σ = 307876608. Its totient is φ = 93470400.

The previous prime is 180139121. The next prime is 180139129. The reversal of 180139125 is 521931081.

It is an interprime number because it is at equal distance from previous prime (180139121) and next prime (180139129).

It is not a de Polignac number, because 180139125 - 2² = 180139121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180139092 and 180139101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180139121) 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, 7384 + ... + 20366.

It is an arithmetic number, because the mean of its divisors is an integer number (9621144).

Almost surely, 2^180139125 is an apocalyptic number.

180139125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

180139125 is a deficient number, since it is larger than the sum of its proper divisors (127737483).

180139125 is a wasteful number, since it uses less digits than its factorization.

180139125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13038 (or 13028 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 180139125 is about 13421.5917461380. The cubic root of 180139125 is about 564.7670483525.

The spelling of 180139125 in words is "one hundred eighty million, one hundred thirty-nine thousand, one hundred twenty-five".