1013144481 has 18 divisors (see below), whose sum is σ = 1500029622. Its totient is φ = 658558080.

The previous prime is 1013144459. The next prime is 1013144497. The reversal of 1013144481 is 1844413101.

1013144481 is a `hidden beast` number, since 10 + 131 + 44 + 481 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 5716881 + 1007427600 = 2391^2 + 31740^2 .

It is not a de Polignac number, because 1013144481 - 2⁹ = 1013143969 is a prime.

It is a super-2 number, since 2×1013144481² = 2052923478761518722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013144441) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 610605 + ... + 612261.

It is an arithmetic number, because the mean of its divisors is an integer number (83334979).

Almost surely, 2^1013144481 is an apocalyptic number.

It is an amenable number.

1013144481 is a deficient number, since it is larger than the sum of its proper divisors (486885141).

1013144481 is an frugal number, since it uses more digits than its factorization.

1013144481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1013144481 is about 31829.9305842787. The cubic root of 1013144481 is about 1004.3624351526.

Adding to 1013144481 its reverse (1844413101), we get a palindrome (2857557582).

The spelling of 1013144481 in words is "one billion, thirteen million, one hundred forty-four thousand, four hundred eighty-one".