1381571245 has 8 divisors (see below), whose sum is σ = 1729967616. Its totient is φ = 1057202256.

The previous prime is 1381571227. The next prime is 1381571309. The reversal of 1381571245 is 5421751831.

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 1381571245 - 2⁷ = 1381571117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6006717 + ... + 6006946.

It is an arithmetic number, because the mean of its divisors is an integer number (216245952).

Almost surely, 2^1381571245 is an apocalyptic number.

It is an amenable number.

1381571245 is a deficient number, since it is larger than the sum of its proper divisors (348396371).

1381571245 is a wasteful number, since it uses less digits than its factorization.

1381571245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12013691.

The product of its digits is 33600, while the sum is 37.

The square root of 1381571245 is about 37169.4934724701. The cubic root of 1381571245 is about 1113.7586633007.

The spelling of 1381571245 in words is "one billion, three hundred eighty-one million, five hundred seventy-one thousand, two hundred forty-five".