139418054 has 8 divisors (see below), whose sum is σ = 221428728. Its totient is φ = 65608480.

The previous prime is 139418033. The next prime is 139418057. The reversal of 139418054 is 450814931.

139418054 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 super-2 number, since 2×139418054² = 38874787562293832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139418057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2050232 + ... + 2050299.

It is an arithmetic number, because the mean of its divisors is an integer number (27678591).

Almost surely, 2^139418054 is an apocalyptic number.

139418054 is a deficient number, since it is larger than the sum of its proper divisors (82010674).

139418054 is a wasteful number, since it uses less digits than its factorization.

139418054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100550.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 139418054 is about 11807.5422506125. The cubic root of 139418054 is about 518.5289464319.

The spelling of 139418054 in words is "one hundred thirty-nine million, four hundred eighteen thousand, fifty-four".