1213475426 has 8 divisors (see below), whose sum is σ = 1820370540. Its totient is φ = 606685248.

The previous prime is 1213475407. The next prime is 1213475441. The reversal of 1213475426 is 6245743121.

It can be written as a sum of positive squares in 2 ways, for example, as 1069355401 + 144120025 = 32701^2 + 12005^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16790 + ... + 52046.

Almost surely, 2^1213475426 is an apocalyptic number.

1213475426 is a deficient number, since it is larger than the sum of its proper divisors (606895114).

1213475426 is a wasteful number, since it uses less digits than its factorization.

1213475426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52468.

The product of its digits is 40320, while the sum is 35.

The square root of 1213475426 is about 34834.9741782594. The cubic root of 1213475426 is about 1066.6214879085.

The spelling of 1213475426 in words is "one billion, two hundred thirteen million, four hundred seventy-five thousand, four hundred twenty-six".