139809382 has 16 divisors (see below), whose sum is σ = 212382000. Its totient is φ = 69021280.

The previous prime is 139809367. The next prime is 139809401. The reversal of 139809382 is 283908931.

It is a happy 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, 52032 + ... + 54652.

It is an arithmetic number, because the mean of its divisors is an integer number (13273875).

Almost surely, 2^139809382 is an apocalyptic number.

139809382 is a deficient number, since it is larger than the sum of its proper divisors (72572618).

139809382 is a wasteful number, since it uses less digits than its factorization.

139809382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 139809382 is about 11824.1017417815. The cubic root of 139809382 is about 519.0136405670.

The spelling of 139809382 in words is "one hundred thirty-nine million, eight hundred nine thousand, three hundred eighty-two".