1373440801 has 2 divisors, whose sum is σ = 1373440802. Its totient is φ = 1373440800.

The previous prime is 1373440787. The next prime is 1373440823. The reversal of 1373440801 is 1080443731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122250000 + 251190801 = 33500^2 + 15849^2 .

It is an emirp because it is prime and its reverse (1080443731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1373440801 - 2¹³ = 1373432609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1373446801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686720400 + 686720401.

It is an arithmetic number, because the mean of its divisors is an integer number (686720401).

Almost surely, 2^1373440801 is an apocalyptic number.

It is an amenable number.

1373440801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373440801 is an equidigital number, since it uses as much as digits as its factorization.

1373440801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1373440801 is about 37059.9622368939. The cubic root of 1373440801 is about 1111.5695678204.

The spelling of 1373440801 in words is "one billion, three hundred seventy-three million, four hundred forty thousand, eight hundred one".