1226441501 has 2 divisors, whose sum is σ = 1226441502. Its totient is φ = 1226441500.

The previous prime is 1226441477. The next prime is 1226441533. The reversal of 1226441501 is 1051446221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 919666276 + 306775225 = 30326^2 + 17515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226441501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226441551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613220750 + 613220751.

It is an arithmetic number, because the mean of its divisors is an integer number (613220751).

Almost surely, 2^1226441501 is an apocalyptic number.

It is an amenable number.

1226441501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226441501 is an equidigital number, since it uses as much as digits as its factorization.

1226441501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1226441501 is about 35020.5868168996. The cubic root of 1226441501 is about 1070.4070134696.

Adding to 1226441501 its reverse (1051446221), we get a palindrome (2277887722).

The spelling of 1226441501 in words is "one billion, two hundred twenty-six million, four hundred forty-one thousand, five hundred one".