1371443245 has 8 divisors (see below), whose sum is σ = 1655587584. Its totient is φ = 1090584144.

The previous prime is 1371443243. The next prime is 1371443251. The reversal of 1371443245 is 5423441731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1371443245 - 2¹ = 1371443243 is a prime.

It is a super-2 number, since 2×1371443245² = 3761713148512260050, which contains 22 as substring.

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 1371443245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371443243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820389 + ... + 822058.

It is an arithmetic number, because the mean of its divisors is an integer number (206948448).

Almost surely, 2^1371443245 is an apocalyptic number.

It is an amenable number.

1371443245 is a deficient number, since it is larger than the sum of its proper divisors (284144339).

1371443245 is a wasteful number, since it uses less digits than its factorization.

1371443245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642619.

The product of its digits is 40320, while the sum is 34.

The square root of 1371443245 is about 37033.0021062295. The cubic root of 1371443245 is about 1111.0304110296.

Adding to 1371443245 its reverse (5423441731), we get a palindrome (6794884976).

The spelling of 1371443245 in words is "one billion, three hundred seventy-one million, four hundred forty-three thousand, two hundred forty-five".