139741406 has 16 divisors (see below), whose sum is σ = 240122880. Its totient is φ = 59747640.

The previous prime is 139741361. The next prime is 139741429. The reversal of 139741406 is 604147931.

It is a Curzon number.

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, 5546 + ... + 17613.

It is an arithmetic number, because the mean of its divisors is an integer number (15007680).

Almost surely, 2^139741406 is an apocalyptic number.

139741406 is a deficient number, since it is larger than the sum of its proper divisors (100381474).

139741406 is a wasteful number, since it uses less digits than its factorization.

139741406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23599.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 139741406 is about 11821.2269244778. The cubic root of 139741406 is about 518.9295112806.

The spelling of 139741406 in words is "one hundred thirty-nine million, seven hundred forty-one thousand, four hundred six".