139759930 has 8 divisors (see below), whose sum is σ = 251567892. Its totient is φ = 55903968.

The previous prime is 139759901. The next prime is 139759931. The reversal of 139759930 is 39957931.

It can be written as a sum of positive squares in 2 ways, for example, as 127306089 + 12453841 = 11283^2 + 3529^2 .

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

It is not an unprimeable number, because it can be changed into a prime (139759931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6987987 + ... + 6988006.

Almost surely, 2^139759930 is an apocalyptic number.

139759930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139759930 is a deficient number, since it is larger than the sum of its proper divisors (111807962).

139759930 is a wasteful number, since it uses less digits than its factorization.

139759930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13976000.

The product of its (nonzero) digits is 229635, while the sum is 46.

The square root of 139759930 is about 11822.0104043263. The cubic root of 139759930 is about 518.9524398833.

The spelling of 139759930 in words is "one hundred thirty-nine million, seven hundred fifty-nine thousand, nine hundred thirty".