1213408082 has 16 divisors (see below), whose sum is σ = 1993633560. Its totient is φ = 551324928.

The previous prime is 1213408073. The next prime is 1213408093. The reversal of 1213408082 is 2808043121.

It can be written as a sum of positive squares in 4 ways, for example, as 1079056801 + 134351281 = 32849^2 + 11591^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614333 + ... + 616304.

Almost surely, 2^1213408082 is an apocalyptic number.

1213408082 is a deficient number, since it is larger than the sum of its proper divisors (780225478).

1213408082 is a wasteful number, since it uses less digits than its factorization.

1213408082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230685.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1213408082 is about 34834.0075500939. The cubic root of 1213408082 is about 1066.6017561846.

The spelling of 1213408082 in words is "one billion, two hundred thirteen million, four hundred eight thousand, eighty-two".