139400606 has 16 divisors (see below), whose sum is σ = 220343760. Its totient is φ = 65960640.

The previous prime is 139400603. The next prime is 139400617. The reversal of 139400606 is 606004931.

139400606 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 (139400603) 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, 55040 + ... + 57516.

It is an arithmetic number, because the mean of its divisors is an integer number (13771485).

Almost surely, 2^139400606 is an apocalyptic number.

139400606 is a deficient number, since it is larger than the sum of its proper divisors (80943154).

139400606 is a wasteful number, since it uses less digits than its factorization.

139400606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 139400606 is about 11806.8033777141. The cubic root of 139400606 is about 518.5073144403.

The spelling of 139400606 in words is "one hundred thirty-nine million, four hundred thousand, six hundred six".