1139493673 has 2 divisors, whose sum is σ = 1139493674. Its totient is φ = 1139493672.

The previous prime is 1139493671. The next prime is 1139493713. The reversal of 1139493673 is 3763949311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1097464384 + 42029289 = 33128^2 + 6483^2 .

It is a cyclic number.

It is not a de Polignac number, because 1139493673 - 2¹ = 1139493671 is a prime.

Together with 1139493671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1139493671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569746836 + 569746837.

It is an arithmetic number, because the mean of its divisors is an integer number (569746837).

Almost surely, 2^1139493673 is an apocalyptic number.

It is an amenable number.

1139493673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139493673 is an equidigital number, since it uses as much as digits as its factorization.

1139493673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 46.

The square root of 1139493673 is about 33756.3871437688. The cubic root of 1139493673 is about 1044.4892456081.

The spelling of 1139493673 in words is "one billion, one hundred thirty-nine million, four hundred ninety-three thousand, six hundred seventy-three".