1213434134 has 16 divisors (see below), whose sum is σ = 1993178880. Its totient is φ = 549461160.

The previous prime is 1213434133. The next prime is 1213434163. The reversal of 1213434134 is 4314343121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213434133) 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, 99074 + ... + 110645.

It is an arithmetic number, because the mean of its divisors is an integer number (124573680).

Almost surely, 2^1213434134 is an apocalyptic number.

1213434134 is a deficient number, since it is larger than the sum of its proper divisors (779744746).

1213434134 is a wasteful number, since it uses less digits than its factorization.

1213434134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209995.

The product of its digits is 3456, while the sum is 26.

The square root of 1213434134 is about 34834.3814930020. The cubic root of 1213434134 is about 1066.6093894808.

Adding to 1213434134 its reverse (4314343121), we get a palindrome (5527777255).

The spelling of 1213434134 in words is "one billion, two hundred thirteen million, four hundred thirty-four thousand, one hundred thirty-four".