1226926957 has 4 divisors (see below), whose sum is σ = 1291502080. Its totient is φ = 1162351836.

The previous prime is 1226926933. The next prime is 1226926969. The reversal of 1226926957 is 7596296221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1226926957 - 2⁷ = 1226926829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1226926957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226926997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32287533 + ... + 32287570.

It is an arithmetic number, because the mean of its divisors is an integer number (322875520).

Almost surely, 2^1226926957 is an apocalyptic number.

It is an amenable number.

1226926957 is a deficient number, since it is larger than the sum of its proper divisors (64575123).

1226926957 is an equidigital number, since it uses as much as digits as its factorization.

1226926957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64575122.

The product of its digits is 816480, while the sum is 49.

The square root of 1226926957 is about 35027.5171401000. The cubic root of 1226926957 is about 1070.5482260645.

The spelling of 1226926957 in words is "one billion, two hundred twenty-six million, nine hundred twenty-six thousand, nine hundred fifty-seven".