1213255162 has 32 divisors (see below), whose sum is σ = 2118205440. Its totient is φ = 510436080.

The previous prime is 1213255159. The next prime is 1213255181. The reversal of 1213255162 is 2615523121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213255162.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289639 + ... + 293797.

It is an arithmetic number, because the mean of its divisors is an integer number (66193920).

Almost surely, 2^1213255162 is an apocalyptic number.

1213255162 is a deficient number, since it is larger than the sum of its proper divisors (904950278).

1213255162 is a wasteful number, since it uses less digits than its factorization.

1213255162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546.

The product of its digits is 3600, while the sum is 28.

The square root of 1213255162 is about 34831.8124994953. The cubic root of 1213255162 is about 1066.5569480679.

Adding to 1213255162 its reverse (2615523121), we get a palindrome (3828778283).

The spelling of 1213255162 in words is "one billion, two hundred thirteen million, two hundred fifty-five thousand, one hundred sixty-two".