139941663 has 16 divisors (see below), whose sum is σ = 188380800. Its totient is φ = 92403360.

The previous prime is 139941623. The next prime is 139941679. The reversal of 139941663 is 366149931.

It is not a de Polignac number, because 139941663 - 2¹³ = 139933471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139941623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225768 + ... + 226386.

It is an arithmetic number, because the mean of its divisors is an integer number (11773800).

Almost surely, 2^139941663 is an apocalyptic number.

139941663 is a deficient number, since it is larger than the sum of its proper divisors (48439137).

139941663 is a wasteful number, since it uses less digits than its factorization.

139941663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222.

The product of its digits is 104976, while the sum is 42.

The square root of 139941663 is about 11829.6941211512. The cubic root of 139941663 is about 519.1772776584.

The spelling of 139941663 in words is "one hundred thirty-nine million, nine hundred forty-one thousand, six hundred sixty-three".