1381357363 has 8 divisors (see below), whose sum is σ = 1415574720. Its totient is φ = 1347165120.

The previous prime is 1381357357. The next prime is 1381357381. The reversal of 1381357363 is 3637531831.

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 1381357363 - 2²⁵ = 1347802931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381357333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156381 + ... + 164977.

It is an arithmetic number, because the mean of its divisors is an integer number (176946840).

Almost surely, 2^1381357363 is an apocalyptic number.

1381357363 is a deficient number, since it is larger than the sum of its proper divisors (34217357).

1381357363 is an equidigital number, since it uses as much as digits as its factorization.

1381357363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12557.

The product of its digits is 136080, while the sum is 40.

The square root of 1381357363 is about 37166.6162436130. The cubic root of 1381357363 is about 1113.7011864183.

The spelling of 1381357363 in words is "one billion, three hundred eighty-one million, three hundred fifty-seven thousand, three hundred sixty-three".