139825966 has 8 divisors (see below), whose sum is σ = 239701680. Its totient is φ = 59925408.

The previous prime is 139825951. The next prime is 139826021. The reversal of 139825966 is 669528931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4993771 + ... + 4993798.

It is an arithmetic number, because the mean of its divisors is an integer number (29962710).

Almost surely, 2^139825966 is an apocalyptic number.

139825966 is a deficient number, since it is larger than the sum of its proper divisors (99875714).

139825966 is an equidigital number, since it uses as much as digits as its factorization.

139825966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987578.

The product of its digits is 699840, while the sum is 49.

The square root of 139825966 is about 11824.8030004732. The cubic root of 139825966 is about 519.0341613212.

The spelling of 139825966 in words is "one hundred thirty-nine million, eight hundred twenty-five thousand, nine hundred sixty-six".