1373561327 has 2 divisors, whose sum is σ = 1373561328. Its totient is φ = 1373561326.

The previous prime is 1373561309. The next prime is 1373561347. The reversal of 1373561327 is 7231653731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1373561327 - 2⁶ = 1373561263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373561347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686780663 + 686780664.

It is an arithmetic number, because the mean of its divisors is an integer number (686780664).

Almost surely, 2^1373561327 is an apocalyptic number.

1373561327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373561327 is an equidigital number, since it uses as much as digits as its factorization.

1373561327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 38.

The square root of 1373561327 is about 37061.5882957004. The cubic root of 1373561327 is about 1111.6020820516.

The spelling of 1373561327 in words is "one billion, three hundred seventy-three million, five hundred sixty-one thousand, three hundred twenty-seven".