1226506245 has 16 divisors (see below), whose sum is σ = 1963040640. Its totient is φ = 653926464.

The previous prime is 1226506223. The next prime is 1226506261. The reversal of 1226506245 is 5426056221.

1226506245 = 3647² + 3648² + ... + 3736².

It is not a de Polignac number, because 1226506245 - 2⁵ = 1226506213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42771 + ... + 65439.

It is an arithmetic number, because the mean of its divisors is an integer number (122690040).

Almost surely, 2^1226506245 is an apocalyptic number.

1226506245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226506245 is a deficient number, since it is larger than the sum of its proper divisors (736534395).

1226506245 is a wasteful number, since it uses less digits than its factorization.

1226506245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26284.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1226506245 is about 35021.5111752763. The cubic root of 1226506245 is about 1070.4258487782.

The spelling of 1226506245 in words is "one billion, two hundred twenty-six million, five hundred six thousand, two hundred forty-five".