1373138027 has 2 divisors, whose sum is σ = 1373138028. Its totient is φ = 1373138026.

The previous prime is 1373137897. The next prime is 1373138047. The reversal of 1373138027 is 7208313731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1373138027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1373138047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686569013 + 686569014.

It is an arithmetic number, because the mean of its divisors is an integer number (686569014).

Almost surely, 2^1373138027 is an apocalyptic number.

1373138027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373138027 is an equidigital number, since it uses as much as digits as its factorization.

1373138027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 1373138027 is about 37055.8770912254. The cubic root of 1373138027 is about 1111.4878802568.

The spelling of 1373138027 in words is "one billion, three hundred seventy-three million, one hundred thirty-eight thousand, twenty-seven".