139927623 has 16 divisors (see below), whose sum is σ = 204886272. Its totient is φ = 84240000.

The previous prime is 139927597. The next prime is 139927637. The reversal of 139927623 is 326729931.

It is not a de Polignac number, because 139927623 - 2¹² = 139923527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139927643) 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 15 ways as a sum of consecutive naturals, for example, 9058 + ... + 19023.

It is an arithmetic number, because the mean of its divisors is an integer number (12805392).

Almost surely, 2^139927623 is an apocalyptic number.

139927623 is a deficient number, since it is larger than the sum of its proper divisors (64958649).

139927623 is a wasteful number, since it uses less digits than its factorization.

139927623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28246.

The product of its digits is 122472, while the sum is 42.

The square root of 139927623 is about 11829.1006843293. The cubic root of 139927623 is about 519.1599144881.

The spelling of 139927623 in words is "one hundred thirty-nine million, nine hundred twenty-seven thousand, six hundred twenty-three".