1126402001 has 2 divisors, whose sum is σ = 1126402002. Its totient is φ = 1126402000.

The previous prime is 1126401973. The next prime is 1126402003. The reversal of 1126402001 is 1002046211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1035294976 + 91107025 = 32176^2 + 9545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126402001 - 2³⁰ = 52660177 is a prime.

It is a Sophie Germain prime.

Together with 1126402003, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1126402003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563201000 + 563201001.

It is an arithmetic number, because the mean of its divisors is an integer number (563201001).

Almost surely, 2^1126402001 is an apocalyptic number.

It is an amenable number.

1126402001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126402001 is an equidigital number, since it uses as much as digits as its factorization.

1126402001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1126402001 is about 33561.9129520354. The cubic root of 1126402001 is about 1040.4737735990.

Adding to 1126402001 its reverse (1002046211), we get a palindrome (2128448212).

The spelling of 1126402001 in words is "one billion, one hundred twenty-six million, four hundred two thousand, one".