1212494458 has 8 divisors (see below), whose sum is σ = 2078561952. Its totient is φ = 519640476.

The previous prime is 1212494453. The next prime is 1212494467. The reversal of 1212494458 is 8544942121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1212494458.

It is not an unprimeable number, because it can be changed into a prime (1212494453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43303360 + ... + 43303387.

It is an arithmetic number, because the mean of its divisors is an integer number (259820244).

Almost surely, 2^1212494458 is an apocalyptic number.

1212494458 is a deficient number, since it is larger than the sum of its proper divisors (866067494).

1212494458 is an equidigital number, since it uses as much as digits as its factorization.

1212494458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86606756.

The product of its digits is 92160, while the sum is 40.

The square root of 1212494458 is about 34820.8911143871. The cubic root of 1212494458 is about 1066.3339931094. Note that the first 3 decimals are identical.

The spelling of 1212494458 in words is "one billion, two hundred twelve million, four hundred ninety-four thousand, four hundred fifty-eight".