1262406001 has 2 divisors, whose sum is σ = 1262406002. Its totient is φ = 1262406000.

The previous prime is 1262405981. The next prime is 1262406053. The reversal of 1262406001 is 1006042621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 973440000 + 288966001 = 31200^2 + 16999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262406001 - 2¹³ = 1262397809 is a prime.

It is a super-2 number, since 2×1262406001² = 3187337822721624002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1262406601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631203000 + 631203001.

It is an arithmetic number, because the mean of its divisors is an integer number (631203001).

Almost surely, 2^1262406001 is an apocalyptic number.

It is an amenable number.

1262406001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262406001 is an equidigital number, since it uses as much as digits as its factorization.

1262406001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1262406001 is about 35530.3532349455. The cubic root of 1262406001 is about 1080.7693423721.

Adding to 1262406001 its reverse (1006042621), we get a palindrome (2268448622).

The spelling of 1262406001 in words is "one billion, two hundred sixty-two million, four hundred six thousand, one".