1381814012 has 12 divisors (see below), whose sum is σ = 2435572440. Its totient is φ = 685936176.

The previous prime is 1381813997. The next prime is 1381814023. The reversal of 1381814012 is 2104181831.

It is a super-2 number, since 2×1381814012² = 3818819927519072288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242083 + ... + 1243194.

It is an arithmetic number, because the mean of its divisors is an integer number (202964370).

Almost surely, 2^1381814012 is an apocalyptic number.

It is an amenable number.

1381814012 is a deficient number, since it is larger than the sum of its proper divisors (1053758428).

1381814012 is a wasteful number, since it uses less digits than its factorization.

1381814012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485420 (or 2485418 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1381814012 is about 37172.7590044107. The cubic root of 1381814012 is about 1113.8238953122.

Adding to 1381814012 its reverse (2104181831), we get a palindrome (3485995843).

The spelling of 1381814012 in words is "one billion, three hundred eighty-one million, eight hundred fourteen thousand, twelve".