139194054 has 24 divisors (see below), whose sum is σ = 302211000. Its totient is φ = 46302048.

The previous prime is 139194049. The next prime is 139194067. The reversal of 139194054 is 450491931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1234 + ... + 16730.

It is an arithmetic number, because the mean of its divisors is an integer number (12592125).

Almost surely, 2^139194054 is an apocalyptic number.

139194054 is an abundant number, since it is smaller than the sum of its proper divisors (163016946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139194054 is a wasteful number, since it uses less digits than its factorization.

139194054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16004 (or 16001 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 139194054 is about 11798.0529749616. The cubic root of 139194054 is about 518.2510944566.

The spelling of 139194054 in words is "one hundred thirty-nine million, one hundred ninety-four thousand, fifty-four".