1381183351 has 4 divisors (see below), whose sum is σ = 1388194632. Its totient is φ = 1374172072.

The previous prime is 1381183303. The next prime is 1381183357. The reversal of 1381183351 is 1533811831.

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 1381183351 - 2⁹ = 1381182839 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 (1381183357) 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, 3505345 + ... + 3505738.

It is an arithmetic number, because the mean of its divisors is an integer number (347048658).

Almost surely, 2^1381183351 is an apocalyptic number.

1381183351 is a deficient number, since it is larger than the sum of its proper divisors (7011281).

1381183351 is an equidigital number, since it uses as much as digits as its factorization.

1381183351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7011280.

The product of its digits is 8640, while the sum is 34.

The square root of 1381183351 is about 37164.2751980985. The cubic root of 1381183351 is about 1113.6544194931.

The spelling of 1381183351 in words is "one billion, three hundred eighty-one million, one hundred eighty-three thousand, three hundred fifty-one".