139396284 has 36 divisors (see below), whose sum is σ = 367685136. Its totient is φ = 44444928.

The previous prime is 139396273. The next prime is 139396303. The reversal of 139396284 is 482693931.

It is a happy number.

139396284 is a `hidden beast` number, since 13 + 9 + 3 + 9 + 628 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83349 + ... + 85004.

It is an arithmetic number, because the mean of its divisors is an integer number (10213476).

Almost surely, 2^139396284 is an apocalyptic number.

It is an amenable number.

139396284 is an abundant number, since it is smaller than the sum of its proper divisors (228288852).

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

139396284 is a wasteful number, since it uses less digits than its factorization.

139396284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168386 (or 168381 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 139396284 is about 11806.6203462295. The cubic root of 139396284 is about 518.5019557554.

The spelling of 139396284 in words is "one hundred thirty-nine million, three hundred ninety-six thousand, two hundred eighty-four".