139983284 has 24 divisors (see below), whose sum is σ = 287535360. Its totient is φ = 58370976.

The previous prime is 139983269. The next prime is 139983289. The reversal of 139983284 is 482389931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139983289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66524 + ... + 68595.

It is an arithmetic number, because the mean of its divisors is an integer number (11980640).

Almost surely, 2^139983284 is an apocalyptic number.

139983284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139983284 is an abundant number, since it is smaller than the sum of its proper divisors (147552076).

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

139983284 is a wasteful number, since it uses less digits than its factorization.

139983284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135167 (or 135165 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 139983284 is about 11831.4531651864. The cubic root of 139983284 is about 519.2287432360.

The spelling of 139983284 in words is "one hundred thirty-nine million, nine hundred eighty-three thousand, two hundred eighty-four".