139452246 has 24 divisors (see below), whose sum is σ = 310086840. Its totient is φ = 46455156.

The previous prime is 139452217. The next prime is 139452253. The reversal of 139452246 is 642254931.

It is a happy number.

139452246 is a `hidden beast` number, since 1 + 3 + 94 + 522 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 139452246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85975 + ... + 87581.

It is an arithmetic number, because the mean of its divisors is an integer number (12920285).

Almost surely, 2^139452246 is an apocalyptic number.

139452246 is an abundant number, since it is smaller than the sum of its proper divisors (170634594).

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

139452246 is an frugal number, since it uses more digits than its factorization.

139452246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225 (or 1612 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 139452246 is about 11808.9900499577. The cubic root of 139452246 is about 518.5713323641.

The spelling of 139452246 in words is "one hundred thirty-nine million, four hundred fifty-two thousand, two hundred forty-six".