139688094 has 32 divisors (see below), whose sum is σ = 343848960. Its totient is φ = 36840672.

The previous prime is 139688093. The next prime is 139688111. The reversal of 139688094 is 490886931.

139688094 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139688093) 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, 127374 + ... + 128465.

It is an arithmetic number, because the mean of its divisors is an integer number (10745280).

Almost surely, 2^139688094 is an apocalyptic number.

139688094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

139688094 is an abundant number, since it is smaller than the sum of its proper divisors (204160866).

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

139688094 is a wasteful number, since it uses less digits than its factorization.

139688094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255864.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 139688094 is about 11818.9717826891. The cubic root of 139688094 is about 518.8635115416.

The spelling of 139688094 in words is "one hundred thirty-nine million, six hundred eighty-eight thousand, ninety-four".