1314144981 has 6 divisors (see below), whose sum is σ = 1898209430. Its totient is φ = 876096648.

The previous prime is 1314144977. The next prime is 1314145057. The reversal of 1314144981 is 1894414131.

1314144981 is a `hidden beast` number, since 131 + 4 + 1 + 449 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1264442481 + 49702500 = 35559^2 + 7050^2 .

It is not a de Polignac number, because 1314144981 - 2² = 1314144977 is a prime.

It is a super-2 number, since 2×1314144981² = 3453954062174980722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314142981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73008046 + ... + 73008063.

Almost surely, 2^1314144981 is an apocalyptic number.

It is an amenable number.

1314144981 is a deficient number, since it is larger than the sum of its proper divisors (584064449).

1314144981 is a wasteful number, since it uses less digits than its factorization.

1314144981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146016115 (or 146016112 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1314144981 is about 36251.1376511138. The cubic root of 1314144981 is about 1095.3370051712.

The spelling of 1314144981 in words is "one billion, three hundred fourteen million, one hundred forty-four thousand, nine hundred eighty-one".