139132430 has 32 divisors (see below), whose sum is σ = 262396800. Its totient is φ = 53044992.

The previous prime is 139132423. The next prime is 139132439. The reversal of 139132430 is 34231931.

It is a happy number.

139132430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 139132430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139132439) 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, 19874 + ... + 25946.

It is an arithmetic number, because the mean of its divisors is an integer number (8199900).

Almost surely, 2^139132430 is an apocalyptic number.

139132430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139132430 is a deficient number, since it is larger than the sum of its proper divisors (123264370).

139132430 is a wasteful number, since it uses less digits than its factorization.

139132430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 139132430 is about 11795.4410684807. The cubic root of 139132430 is about 518.1746031154.

The spelling of 139132430 in words is "one hundred thirty-nine million, one hundred thirty-two thousand, four hundred thirty".