139963183 has 2 divisors, whose sum is σ = 139963184. Its totient is φ = 139963182.

The previous prime is 139963147. The next prime is 139963247. The reversal of 139963183 is 381369931.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (381369931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139963183 - 2²¹ = 137866031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139963283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69981591 + 69981592.

It is an arithmetic number, because the mean of its divisors is an integer number (69981592).

Almost surely, 2^139963183 is an apocalyptic number.

139963183 is a deficient number, since it is larger than the sum of its proper divisors (1).

139963183 is an equidigital number, since it uses as much as digits as its factorization.

139963183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 43.

The square root of 139963183 is about 11830.6036616903. The cubic root of 139963183 is about 519.2038890385.

The spelling of 139963183 in words is "one hundred thirty-nine million, nine hundred sixty-three thousand, one hundred eighty-three".