1226526601 has 2 divisors, whose sum is σ = 1226526602. Its totient is φ = 1226526600.

The previous prime is 1226526599. The next prime is 1226526629. The reversal of 1226526601 is 1066256221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147583376 + 78943225 = 33876^2 + 8885^2 .

It is an emirp because it is prime and its reverse (1066256221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1226526601 - 2¹ = 1226526599 is a prime.

It is a super-2 number, since 2×1226526601² = 3008735005921226402, which contains 22 as substring.

Together with 1226526599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1226526661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613263300 + 613263301.

It is an arithmetic number, because the mean of its divisors is an integer number (613263301).

Almost surely, 2^1226526601 is an apocalyptic number.

It is an amenable number.

1226526601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226526601 is an equidigital number, since it uses as much as digits as its factorization.

1226526601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1226526601 is about 35021.8017954531. The cubic root of 1226526601 is about 1070.4317706037.

The spelling of 1226526601 in words is "one billion, two hundred twenty-six million, five hundred twenty-six thousand, six hundred one".