139783902 has 8 divisors (see below), whose sum is σ = 279567816. Its totient is φ = 46594632.

The previous prime is 139783873. The next prime is 139783907. The reversal of 139783902 is 209387931.

It is a sphenic number, since it is the product of 3 distinct primes.

139783902 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139783907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11648653 + ... + 11648664.

It is an arithmetic number, because the mean of its divisors is an integer number (34945977).

Almost surely, 2^139783902 is an apocalyptic number.

139783902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

139783902 is a wasteful number, since it uses less digits than its factorization.

139783902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23297322.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 139783902 is about 11823.0242324035. The cubic root of 139783902 is about 518.9821088943.

The spelling of 139783902 in words is "one hundred thirty-nine million, seven hundred eighty-three thousand, nine hundred two".