1373653801 has 6 divisors (see below), whose sum is σ = 1487447790. Its totient is φ = 1267987968.

The previous prime is 1373653793. The next prime is 1373653837. The reversal of 1373653801 is 1083563731.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10272025 + 1363381776 = 3205^2 + 36924^2 .

It is not a de Polignac number, because 1373653801 - 2³ = 1373653793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1373653891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4063896 + ... + 4064233.

It is an arithmetic number, because the mean of its divisors is an integer number (247907965).

Almost surely, 2^1373653801 is an apocalyptic number.

It is an amenable number.

1373653801 is a deficient number, since it is larger than the sum of its proper divisors (113793989).

1373653801 is an equidigital number, since it uses as much as digits as its factorization.

1373653801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8128155 (or 8128142 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1373653801 is about 37062.8358467077. The cubic root of 1373653801 is about 1111.6270274210.

The spelling of 1373653801 in words is "one billion, three hundred seventy-three million, six hundred fifty-three thousand, eight hundred one".