139081763 has 2 divisors, whose sum is σ = 139081764. Its totient is φ = 139081762.

The previous prime is 139081757. The next prime is 139081837. The reversal of 139081763 is 367180931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139081763 - 2¹² = 139077667 is a prime.

It is not a weakly prime, because it can be changed into another prime (139081753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69540881 + 69540882.

It is an arithmetic number, because the mean of its divisors is an integer number (69540882).

Almost surely, 2^139081763 is an apocalyptic number.

139081763 is a deficient number, since it is larger than the sum of its proper divisors (1).

139081763 is an equidigital number, since it uses as much as digits as its factorization.

139081763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 139081763 is about 11793.2931363551. The cubic root of 139081763 is about 518.1116953275. Note that the first 3 decimals are identical.

The spelling of 139081763 in words is "one hundred thirty-nine million, eighty-one thousand, seven hundred sixty-three".