1226258001 has 8 divisors (see below), whose sum is σ = 1816678560. Its totient is φ = 817505316.

The previous prime is 1226257993. The next prime is 1226258021. The reversal of 1226258001 is 1008526221.

It is a happy number.

1226258001 is a `hidden beast` number, since 1 + 22 + 62 + 580 + 0 + 1 = 666.

It is not a de Polignac number, because 1226258001 - 2³ = 1226257993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 45416963 = 1226258001 / (1 + 2 + 2 + 6 + 2 + 5 + 8 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (1226258021) 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, 22708455 + ... + 22708508.

It is an arithmetic number, because the mean of its divisors is an integer number (227084820).

Almost surely, 2^1226258001 is an apocalyptic number.

It is an amenable number.

1226258001 is a deficient number, since it is larger than the sum of its proper divisors (590420559).

1226258001 is an equidigital number, since it uses as much as digits as its factorization.

1226258001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45416972 (or 45416966 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1226258001 is about 35017.9668313282. The cubic root of 1226258001 is about 1070.3536260927.

The spelling of 1226258001 in words is "one billion, two hundred twenty-six million, two hundred fifty-eight thousand, one".