1213019975 has 12 divisors (see below), whose sum is σ = 1556012760. Its totient is φ = 936952800.

The previous prime is 1213019963. The next prime is 1213019993. The reversal of 1213019975 is 5799103121.

It is not a de Polignac number, because 1213019975 - 2⁴ = 1213019959 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 835841 + ... + 837290.

It is an arithmetic number, because the mean of its divisors is an integer number (129667730).

Almost surely, 2^1213019975 is an apocalyptic number.

1213019975 is a deficient number, since it is larger than the sum of its proper divisors (342992785).

1213019975 is a wasteful number, since it uses less digits than its factorization.

1213019975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673170 (or 1673165 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 1213019975 is about 34828.4362985191. The cubic root of 1213019975 is about 1066.4880269959.

The spelling of 1213019975 in words is "one billion, two hundred thirteen million, nineteen thousand, nine hundred seventy-five".