139824486 has 24 divisors (see below), whose sum is σ = 313400880. Its totient is φ = 45000816.

The previous prime is 139824481. The next prime is 139824551. The reversal of 139824486 is 684428931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139824481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133410 + ... + 134453.

It is an arithmetic number, because the mean of its divisors is an integer number (13058370).

Almost surely, 2^139824486 is an apocalyptic number.

139824486 is an abundant number, since it is smaller than the sum of its proper divisors (173576394).

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

139824486 is a wasteful number, since it uses less digits than its factorization.

139824486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267900 (or 267897 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 139824486 is about 11824.7404199839. The cubic root of 139824486 is about 519.0323300608.

The spelling of 139824486 in words is "one hundred thirty-nine million, eight hundred twenty-four thousand, four hundred eighty-six".