1226361147 has 64 divisors (see below), whose sum is σ = 1966768128. Its totient is φ = 671040000.

The previous prime is 1226361139. The next prime is 1226361163. The reversal of 1226361147 is 7411636221.

It is not a de Polignac number, because 1226361147 - 2³ = 1226361139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1226361167) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2625808 + ... + 2626274.

It is an arithmetic number, because the mean of its divisors is an integer number (30730752).

Almost surely, 2^1226361147 is an apocalyptic number.

1226361147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1226361147 is a deficient number, since it is larger than the sum of its proper divisors (740406981).

1226361147 is a wasteful number, since it uses less digits than its factorization.

1226361147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680.

The product of its digits is 12096, while the sum is 33.

The square root of 1226361147 is about 35019.4395586223. The cubic root of 1226361147 is about 1070.3836359818.

Adding to 1226361147 its reverse (7411636221), we get a palindrome (8637997368).

The spelling of 1226361147 in words is "one billion, two hundred twenty-six million, three hundred sixty-one thousand, one hundred forty-seven".