139013468 has 12 divisors (see below), whose sum is σ = 265389432. Its totient is φ = 63187920.

The previous prime is 139013431. The next prime is 139013473. The reversal of 139013468 is 864310931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1579655 + ... + 1579742.

It is an arithmetic number, because the mean of its divisors is an integer number (22115786).

Almost surely, 2^139013468 is an apocalyptic number.

It is an amenable number.

139013468 is a deficient number, since it is larger than the sum of its proper divisors (126375964).

139013468 is a wasteful number, since it uses less digits than its factorization.

139013468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159412 (or 3159410 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 139013468 is about 11790.3972791420. The cubic root of 139013468 is about 518.0268765590.

The spelling of 139013468 in words is "one hundred thirty-nine million, thirteen thousand, four hundred sixty-eight".