139976783 has 2 divisors, whose sum is σ = 139976784. Its totient is φ = 139976782.

The previous prime is 139976737. The next prime is 139976801. The reversal of 139976783 is 387679931.

It is a happy number.

139976783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (387679931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139976783 - 2⁶ = 139976719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139976483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69988391 + 69988392.

It is an arithmetic number, because the mean of its divisors is an integer number (69988392).

Almost surely, 2^139976783 is an apocalyptic number.

139976783 is a deficient number, since it is larger than the sum of its proper divisors (1).

139976783 is an equidigital number, since it uses as much as digits as its factorization.

139976783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 53.

The square root of 139976783 is about 11831.1784282040. The cubic root of 139976783 is about 519.2207052327.

The spelling of 139976783 in words is "one hundred thirty-nine million, nine hundred seventy-six thousand, seven hundred eighty-three".