1226136969 has 24 divisors (see below), whose sum is σ = 1898050752. Its totient is φ = 760747680.

The previous prime is 1226136953. The next prime is 1226136973. The reversal of 1226136969 is 9696316221.

1226136969 is a `hidden beast` number, since 1 + 22 + 613 + 6 + 9 + 6 + 9 = 666.

It is not a de Polignac number, because 1226136969 - 2⁴ = 1226136953 is a prime.

It is a super-2 number, since 2×1226136969² = 3006823733497013922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226136929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72387 + ... + 87704.

It is an arithmetic number, because the mean of its divisors is an integer number (79085448).

Almost surely, 2^1226136969 is an apocalyptic number.

It is an amenable number.

1226136969 is a deficient number, since it is larger than the sum of its proper divisors (671913783).

1226136969 is a wasteful number, since it uses less digits than its factorization.

1226136969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160157 (or 160154 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 1226136969 is about 35016.2386472334. The cubic root of 1226136969 is about 1070.3184102023.

The spelling of 1226136969 in words is "one billion, two hundred twenty-six million, one hundred thirty-six thousand, nine hundred sixty-nine".