1381216703 has 4 divisors (see below), whose sum is σ = 1381563720. Its totient is φ = 1380869688.

The previous prime is 1381216699. The next prime is 1381216757. The reversal of 1381216703 is 3076121831.

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 1381216703 - 2² = 1381216699 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 1381216703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381246703) 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, 167468 + ... + 175521.

It is an arithmetic number, because the mean of its divisors is an integer number (345390930).

Almost surely, 2^1381216703 is an apocalyptic number.

1381216703 is a deficient number, since it is larger than the sum of its proper divisors (347017).

1381216703 is an equidigital number, since it uses as much as digits as its factorization.

1381216703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347016.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1381216703 is about 37164.7239058761. The cubic root of 1381216703 is about 1113.6633833774.

The spelling of 1381216703 in words is "one billion, three hundred eighty-one million, two hundred sixteen thousand, seven hundred three".