1213136134 has 32 divisors (see below), whose sum is σ = 2123573760. Its totient is φ = 509050752.

The previous prime is 1213136123. The next prime is 1213136137. The reversal of 1213136134 is 4316313121.

It is a junction number, because it is equal to n+sod(n) for n = 1213136099 and 1213136108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213136137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126687 + ... + 135925.

It is an arithmetic number, because the mean of its divisors is an integer number (66361680).

Almost surely, 2^1213136134 is an apocalyptic number.

1213136134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1213136134 is a deficient number, since it is larger than the sum of its proper divisors (910437626).

1213136134 is a wasteful number, since it uses less digits than its factorization.

1213136134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444.

The product of its digits is 1296, while the sum is 25.

The square root of 1213136134 is about 34830.1038471033. The cubic root of 1213136134 is about 1066.5220682679.

Adding to 1213136134 its reverse (4316313121), we get a palindrome (5529449255).

The spelling of 1213136134 in words is "one billion, two hundred thirteen million, one hundred thirty-six thousand, one hundred thirty-four".