1403611313 has 8 divisors (see below), whose sum is σ = 1513317288. Its totient is φ = 1294153344.

The previous prime is 1403611247. The next prime is 1403611331. The reversal of 1403611313 is 3131163041.

It can be written as a sum of positive squares in 4 ways, for example, as 487217329 + 916393984 = 22073^2 + 30272^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1403611313 - 2¹² = 1403607217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1403611213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50156 + ... + 72957.

It is an arithmetic number, because the mean of its divisors is an integer number (189164661).

Almost surely, 2^1403611313 is an apocalyptic number.

1403611313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1403611313 is a deficient number, since it is larger than the sum of its proper divisors (109705975).

1403611313 is a wasteful number, since it uses less digits than its factorization.

1403611313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124003.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1403611313 is about 37464.8009870598. The cubic root of 1403611313 is about 1119.6500057016.

Adding to 1403611313 its reverse (3131163041), we get a palindrome (4534774354).

The spelling of 1403611313 in words is "one billion, four hundred three million, six hundred eleven thousand, three hundred thirteen".