1306461503 has 4 divisors (see below), whose sum is σ = 1306857048. Its totient is φ = 1306065960.

The previous prime is 1306461493. The next prime is 1306461511. The reversal of 1306461503 is 3051646031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1306461503 - 2²⁴ = 1289684287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306461703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192776 + ... + 199437.

It is an arithmetic number, because the mean of its divisors is an integer number (326714262).

Almost surely, 2^1306461503 is an apocalyptic number.

1306461503 is a deficient number, since it is larger than the sum of its proper divisors (395545).

1306461503 is an equidigital number, since it uses as much as digits as its factorization.

1306461503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395544.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1306461503 is about 36145.0066122556. The cubic root of 1306461503 is about 1093.1981104349.

The spelling of 1306461503 in words is "one billion, three hundred six million, four hundred sixty-one thousand, five hundred three".