1206120458 has 4 divisors (see below), whose sum is σ = 1809180690. Its totient is φ = 603060228.

The previous prime is 1206120457. The next prime is 1206120467. The reversal of 1206120458 is 8540216021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1097398129 + 108722329 = 33127^2 + 10427^2 .

It is a super-2 number, since 2×1206120458² = 2909453118412259528, which contains 22 as substring.

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 1206120458.

It is not an unprimeable number, because it can be changed into a prime (1206120451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301530113 + ... + 301530116.

Almost surely, 2^1206120458 is an apocalyptic number.

1206120458 is a deficient number, since it is larger than the sum of its proper divisors (603060232).

1206120458 is an equidigital number, since it uses as much as digits as its factorization.

1206120458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603060231.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1206120458 is about 34729.2449961124. The cubic root of 1206120458 is about 1064.4621610749.

Adding to 1206120458 its reverse (8540216021), we get a palindrome (9746336479).

The spelling of 1206120458 in words is "one billion, two hundred six million, one hundred twenty thousand, four hundred fifty-eight".