1210813142 has 16 divisors (see below), whose sum is σ = 2264378112. Its totient is φ = 471745320.

The previous prime is 1210813141. The next prime is 1210813147. The reversal of 1210813142 is 2413180121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210813141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3931058 + ... + 3931365.

It is an arithmetic number, because the mean of its divisors is an integer number (141523632).

Almost surely, 2^1210813142 is an apocalyptic number.

1210813142 is a deficient number, since it is larger than the sum of its proper divisors (1053564970).

1210813142 is a wasteful number, since it uses less digits than its factorization.

1210813142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7862443.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1210813142 is about 34796.7403933185. The cubic root of 1210813142 is about 1065.8408846752.

Adding to 1210813142 its reverse (2413180121), we get a palindrome (3623993263).

The spelling of 1210813142 in words is "one billion, two hundred ten million, eight hundred thirteen thousand, one hundred forty-two".