139901842 has 8 divisors (see below), whose sum is σ = 210121776. Its totient is φ = 69861252.

The previous prime is 139901831. The next prime is 139901851. The reversal of 139901842 is 248109931.

139901842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42868 + ... + 46015.

It is an arithmetic number, because the mean of its divisors is an integer number (26265222).

Almost surely, 2^139901842 is an apocalyptic number.

139901842 is a deficient number, since it is larger than the sum of its proper divisors (70219934).

139901842 is an equidigital number, since it uses as much as digits as its factorization.

139901842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89672.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 139901842 is about 11828.0109063189. The cubic root of 139901842 is about 519.1280282802.

The spelling of 139901842 in words is "one hundred thirty-nine million, nine hundred one thousand, eight hundred forty-two".