1213412475 has 48 divisors (see below), whose sum is σ = 2229928704. Its totient is φ = 577200000.

The previous prime is 1213412471. The next prime is 1213412491. The reversal of 1213412475 is 5742143121.

It is not a de Polignac number, because 1213412475 - 2² = 1213412471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213412471) 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, 29850 + ... + 57600.

It is an arithmetic number, because the mean of its divisors is an integer number (46456848).

Almost surely, 2^1213412475 is an apocalyptic number.

1213412475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1213412475 is a deficient number, since it is larger than the sum of its proper divisors (1016516229).

1213412475 is a wasteful number, since it uses less digits than its factorization.

1213412475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27828 (or 27823 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 1213412475 is about 34834.0706062326. The cubic root of 1213412475 is about 1066.6030433514.

Adding to 1213412475 its reverse (5742143121), we get a palindrome (6955555596).

The spelling of 1213412475 in words is "one billion, two hundred thirteen million, four hundred twelve thousand, four hundred seventy-five".