1213282875 has 48 divisors (see below), whose sum is σ = 2348555040. Its totient is φ = 554635200.

The previous prime is 1213282859. The next prime is 1213282879. The reversal of 1213282875 is 5782823121.

It is not a de Polignac number, because 1213282875 - 2⁴ = 1213282859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213282879) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14640 + ... + 51389.

It is an arithmetic number, because the mean of its divisors is an integer number (48928230).

Almost surely, 2^1213282875 is an apocalyptic number.

1213282875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1213282875 is a deficient number, since it is larger than the sum of its proper divisors (1135272165).

1213282875 is an equidigital number, since it uses as much as digits as its factorization.

1213282875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66061 (or 66044 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 1213282875 is about 34832.2103088506. The cubic root of 1213282875 is about 1066.5650687196.

The spelling of 1213282875 in words is "one billion, two hundred thirteen million, two hundred eighty-two thousand, eight hundred seventy-five".