139369926 has 16 divisors (see below), whose sum is σ = 290859264. Its totient is φ = 44436744.

The previous prime is 139369889. The next prime is 139369973. The reversal of 139369926 is 629963931.

It is a happy number.

139369926 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×139369926³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504826 + ... + 505101.

It is an arithmetic number, because the mean of its divisors is an integer number (18178704).

Almost surely, 2^139369926 is an apocalyptic number.

139369926 is an abundant number, since it is smaller than the sum of its proper divisors (151489338).

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

139369926 is a wasteful number, since it uses less digits than its factorization.

139369926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009955.

The product of its digits is 472392, while the sum is 48.

The square root of 139369926 is about 11805.5040553125. The cubic root of 139369926 is about 518.4692730668.

The spelling of 139369926 in words is "one hundred thirty-nine million, three hundred sixty-nine thousand, nine hundred twenty-six".