1226449051 has 4 divisors (see below), whose sum is σ = 1226611512. Its totient is φ = 1226286592.

The previous prime is 1226449043. The next prime is 1226449127. The reversal of 1226449051 is 1509446221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1509446221 = 20959 ⋅72019.

It is a cyclic number.

It is not a de Polignac number, because 1226449051 - 2³ = 1226449043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1226448998 and 1226449016.

It is not an unprimeable number, because it can be changed into a prime (1226449151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69325 + ... + 85198.

It is an arithmetic number, because the mean of its divisors is an integer number (306652878).

Almost surely, 2^1226449051 is an apocalyptic number.

1226449051 is a deficient number, since it is larger than the sum of its proper divisors (162461).

1226449051 is an equidigital number, since it uses as much as digits as its factorization.

1226449051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162460.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1226449051 is about 35020.6946104728. The cubic root of 1226449051 is about 1070.4092099479.

The spelling of 1226449051 in words is "one billion, two hundred twenty-six million, four hundred forty-nine thousand, fifty-one".