139036284 has 24 divisors (see below), whose sum is σ = 360464720. Its totient is φ = 46345392.

The previous prime is 139036283. The next prime is 139036291. The reversal of 139036284 is 482630931.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139036283) 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, 643579 + ... + 643794.

Almost surely, 2^139036284 is an apocalyptic number.

It is an amenable number.

139036284 is an abundant number, since it is smaller than the sum of its proper divisors (221428436).

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

139036284 is a wasteful number, since it uses less digits than its factorization.

139036284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287386 (or 1287378 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 139036284 is about 11791.3648065014. The cubic root of 139036284 is about 518.0552159106.

The spelling of 139036284 in words is "one hundred thirty-nine million, thirty-six thousand, two hundred eighty-four".