1226664913 has 8 divisors (see below), whose sum is σ = 1278877248. Its totient is φ = 1175529264.

The previous prime is 1226664899. The next prime is 1226664931. The reversal of 1226664913 is 3194666221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1226664913 - 2¹³ = 1226656721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226664973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266845 + ... + 271402.

It is an arithmetic number, because the mean of its divisors is an integer number (159859656).

Almost surely, 2^1226664913 is an apocalyptic number.

It is an amenable number.

1226664913 is a deficient number, since it is larger than the sum of its proper divisors (52212335).

1226664913 is an equidigital number, since it uses as much as digits as its factorization.

1226664913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538343.

The product of its digits is 93312, while the sum is 40.

The square root of 1226664913 is about 35023.7763954717. The cubic root of 1226664913 is about 1070.4720056311.

The spelling of 1226664913 in words is "one billion, two hundred twenty-six million, six hundred sixty-four thousand, nine hundred thirteen".