139481054 has 16 divisors (see below), whose sum is σ = 217712448. Its totient is φ = 66966432.

The previous prime is 139481051. The next prime is 139481063. The reversal of 139481054 is 450184931.

139481054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139481051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9017 + ... + 18980.

It is an arithmetic number, because the mean of its divisors is an integer number (13607028).

Almost surely, 2^139481054 is an apocalyptic number.

139481054 is a deficient number, since it is larger than the sum of its proper divisors (78231394).

139481054 is a wasteful number, since it uses less digits than its factorization.

139481054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28099.

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

The square root of 139481054 is about 11810.2097356482. The cubic root of 139481054 is about 518.6070386717.

The spelling of 139481054 in words is "one hundred thirty-nine million, four hundred eighty-one thousand, fifty-four".