1213162075 has 48 divisors (see below), whose sum is σ = 1658465280. Its totient is φ = 876216320.

The previous prime is 1213162063. The next prime is 1213162081. The reversal of 1213162075 is 5702613121.

It is a happy number.

It is not a de Polignac number, because 1213162075 - 2¹¹ = 1213160027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3167334 + ... + 3167716.

It is an arithmetic number, because the mean of its divisors is an integer number (34551360).

Almost surely, 2^1213162075 is an apocalyptic number.

1213162075 is a deficient number, since it is larger than the sum of its proper divisors (445303205).

1213162075 is a wasteful number, since it uses less digits than its factorization.

1213162075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1213162075 is about 34830.4762384898. The cubic root of 1213162075 is about 1066.5296701770.

Adding to 1213162075 its reverse (5702613121), we get a palindrome (6915775196).

The spelling of 1213162075 in words is "one billion, two hundred thirteen million, one hundred sixty-two thousand, seventy-five".