139493726 has 16 divisors (see below), whose sum is σ = 216479088. Its totient is φ = 67368000.

The previous prime is 139493699. The next prime is 139493743. The reversal of 139493726 is 627394931.

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, 140 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (13529943).

Almost surely, 2^139493726 is an apocalyptic number.

139493726 is a deficient number, since it is larger than the sum of its proper divisors (76985362).

139493726 is a wasteful number, since it uses less digits than its factorization.

139493726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16987.

The product of its digits is 244944, while the sum is 44.

The square root of 139493726 is about 11810.7462084324. The cubic root of 139493726 is about 518.6227435271.

The spelling of 139493726 in words is "one hundred thirty-nine million, four hundred ninety-three thousand, seven hundred twenty-six".