1226664914 has 4 divisors (see below), whose sum is σ = 1839997374. Its totient is φ = 613332456.

The previous prime is 1226664899. The next prime is 1226664931. The reversal of 1226664914 is 4194666221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4194666221 = 3163 ⋅1326167.

It can be written as a sum of positive squares in only one way, i.e., 1144671889 + 81993025 = 33833^2 + 9055^2 .

It is a super-2 number, since 2×1226664914² = 3009413622477254792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306666227 + ... + 306666230.

Almost surely, 2^1226664914 is an apocalyptic number.

1226664914 is a deficient number, since it is larger than the sum of its proper divisors (613332460).

1226664914 is an equidigital number, since it uses as much as digits as its factorization.

1226664914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613332459.

The product of its digits is 124416, while the sum is 41.

The square root of 1226664914 is about 35023.7764097477. The cubic root of 1226664914 is about 1070.4720059220.

The spelling of 1226664914 in words is "one billion, two hundred twenty-six million, six hundred sixty-four thousand, nine hundred fourteen".