139653828 has 48 divisors (see below), whose sum is σ = 362824000. Its totient is φ = 46453824.

The previous prime is 139653823. The next prime is 139653841. The reversal of 139653828 is 828356931.

It is a happy number.

139653828 is a `hidden beast` number, since 1 + 3 + 96 + 538 + 28 = 666.

139653828 is a nontrivial binomial coefficient, being equal to C(16713, 2).

It is not an unprimeable number, because it can be changed into a prime (139653823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65808 + ... + 67896.

Almost surely, 2^139653828 is an apocalyptic number.

139653828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

139653828 is the 16712-nd triangular number.

It is an amenable number.

139653828 is an abundant number, since it is smaller than the sum of its proper divisors (223170172).

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

139653828 is a wasteful number, since it uses less digits than its factorization.

139653828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721 (or 2713 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 139653828 is about 11817.5220752914. The cubic root of 139653828 is about 518.8210817000.

The spelling of 139653828 in words is "one hundred thirty-nine million, six hundred fifty-three thousand, eight hundred twenty-eight".