1303012445 has 32 divisors (see below), whose sum is σ = 1908099072. Its totient is φ = 834748992.

The previous prime is 1303012441. The next prime is 1303012471. The reversal of 1303012445 is 5442103031.

It is not a de Polignac number, because 1303012445 - 2² = 1303012441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1303012445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303012441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15794 + ... + 53436.

It is an arithmetic number, because the mean of its divisors is an integer number (59628096).

Almost surely, 2^1303012445 is an apocalyptic number.

It is an amenable number.

1303012445 is a deficient number, since it is larger than the sum of its proper divisors (605086627).

1303012445 is a wasteful number, since it uses less digits than its factorization.

1303012445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37721.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1303012445 is about 36097.2636774590. The cubic root of 1303012445 is about 1092.2352483841.

Adding to 1303012445 its reverse (5442103031), we get a palindrome (6745115476).

The spelling of 1303012445 in words is "one billion, three hundred three million, twelve thousand, four hundred forty-five".