1403135812 has 12 divisors (see below), whose sum is σ = 2644371436. Its totient is φ = 647601120.

The previous prime is 1403135809. The next prime is 1403135813. The reversal of 1403135812 is 2185313041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 291180096 + 1111955716 = 17064^2 + 33346^2 .

It is not an unprimeable number, because it can be changed into a prime (1403135813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13491639 + ... + 13491742.

Almost surely, 2^1403135812 is an apocalyptic number.

It is an amenable number.

1403135812 is a deficient number, since it is larger than the sum of its proper divisors (1241235624).

1403135812 is a wasteful number, since it uses less digits than its factorization.

1403135812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26983398 (or 26983396 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1403135812 is about 37458.4544795965. The cubic root of 1403135812 is about 1119.5235569183.

Adding to 1403135812 its reverse (2185313041), we get a palindrome (3588448853).

The spelling of 1403135812 in words is "one billion, four hundred three million, one hundred thirty-five thousand, eight hundred twelve".