1214402258 has 4 divisors (see below), whose sum is σ = 1821603390. Its totient is φ = 607201128.

The previous prime is 1214402243. The next prime is 1214402261. The reversal of 1214402258 is 8522044121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8522044121 = 17 ⋅501296713.

It can be written as a sum of positive squares in only one way, i.e., 1212641329 + 1760929 = 34823^2 + 1327^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214402258.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 303600563 + ... + 303600566.

Almost surely, 2^1214402258 is an apocalyptic number.

1214402258 is a deficient number, since it is larger than the sum of its proper divisors (607201132).

1214402258 is an equidigital number, since it uses as much as digits as its factorization.

1214402258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607201131.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 1214402258 is about 34848.2748210008. The cubic root of 1214402258 is about 1066.8929746168.

Adding to 1214402258 its reverse (8522044121), we get a palindrome (9736446379).

The spelling of 1214402258 in words is "one billion, two hundred fourteen million, four hundred two thousand, two hundred fifty-eight".