1373855063 has 4 divisors (see below), whose sum is σ = 1570120080. Its totient is φ = 1177590048.

The previous prime is 1373855057. The next prime is 1373855071. The reversal of 1373855063 is 3605583731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1373855063 - 2²² = 1369660759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1373855063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373855003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98132498 + ... + 98132511.

It is an arithmetic number, because the mean of its divisors is an integer number (392530020).

Almost surely, 2^1373855063 is an apocalyptic number.

1373855063 is a deficient number, since it is larger than the sum of its proper divisors (196265017).

1373855063 is an equidigital number, since it uses as much as digits as its factorization.

1373855063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196265016.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 1373855063 is about 37065.5508929788. The cubic root of 1373855063 is about 1111.6813150814.

The spelling of 1373855063 in words is "one billion, three hundred seventy-three million, eight hundred fifty-five thousand, sixty-three".