1373671853 has 4 divisors (see below), whose sum is σ = 1374186528. Its totient is φ = 1373157180.

The previous prime is 1373671847. The next prime is 1373671877. The reversal of 1373671853 is 3581763731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1373671853 - 2¹⁴ = 1373655469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373671813) 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, 253313 + ... + 258678.

It is an arithmetic number, because the mean of its divisors is an integer number (343546632).

Almost surely, 2^1373671853 is an apocalyptic number.

It is an amenable number.

1373671853 is a deficient number, since it is larger than the sum of its proper divisors (514675).

1373671853 is an equidigital number, since it uses as much as digits as its factorization.

1373671853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514674.

The product of its digits is 317520, while the sum is 44.

The square root of 1373671853 is about 37063.0793782708. The cubic root of 1373671853 is about 1111.6318969165.

The spelling of 1373671853 in words is "one billion, three hundred seventy-three million, six hundred seventy-one thousand, eight hundred fifty-three".