139933785 has 16 divisors (see below), whose sum is σ = 224697600. Its totient is φ = 74363520.

The previous prime is 139933763. The next prime is 139933793. The reversal of 139933785 is 587339931.

It is not a de Polignac number, because 139933785 - 2⁷ = 139933657 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 12385 + ... + 20814.

It is an arithmetic number, because the mean of its divisors is an integer number (14043600).

Almost surely, 2^139933785 is an apocalyptic number.

139933785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139933785 is a deficient number, since it is larger than the sum of its proper divisors (84763815).

139933785 is a wasteful number, since it uses less digits than its factorization.

139933785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33488.

The product of its digits is 612360, while the sum is 48.

The square root of 139933785 is about 11829.3611408224. The cubic root of 139933785 is about 519.1675351336.

The spelling of 139933785 in words is "one hundred thirty-nine million, nine hundred thirty-three thousand, seven hundred eighty-five".