139040763 has 4 divisors (see below), whose sum is σ = 185387688. Its totient is φ = 92693840.

The previous prime is 139040753. The next prime is 139040779. The reversal of 139040763 is 367040931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139040763 - 2¹⁶ = 138975227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139040753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23173458 + ... + 23173463.

It is an arithmetic number, because the mean of its divisors is an integer number (46346922).

Almost surely, 2^139040763 is an apocalyptic number.

139040763 is a deficient number, since it is larger than the sum of its proper divisors (46346925).

139040763 is an equidigital number, since it uses as much as digits as its factorization.

139040763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46346924.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 139040763 is about 11791.5547320953. The cubic root of 139040763 is about 518.0607788335.

The spelling of 139040763 in words is "one hundred thirty-nine million, forty thousand, seven hundred sixty-three".