1213046605 has 16 divisors (see below), whose sum is σ = 1464438528. Its totient is φ = 964600000.

The previous prime is 1213046603. The next prime is 1213046629. The reversal of 1213046605 is 5066403121.

It is not a de Polignac number, because 1213046605 - 2¹ = 1213046603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213046603) 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, 1142775 + ... + 1143835.

It is an arithmetic number, because the mean of its divisors is an integer number (91527408).

Almost surely, 2^1213046605 is an apocalyptic number.

It is an amenable number.

1213046605 is a deficient number, since it is larger than the sum of its proper divisors (251391923).

1213046605 is a wasteful number, since it uses less digits than its factorization.

1213046605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1213046605 is about 34828.8185989706. The cubic root of 1213046605 is about 1066.4958313105.

Adding to 1213046605 its reverse (5066403121), we get a palindrome (6279449726).

The spelling of 1213046605 in words is "one billion, two hundred thirteen million, forty-six thousand, six hundred five".