1262020117 has 2 divisors, whose sum is σ = 1262020118. Its totient is φ = 1262020116.

The previous prime is 1262020103. The next prime is 1262020127. The reversal of 1262020117 is 7110202621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1258901361 + 3118756 = 35481^2 + 1766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1262020117 is a prime.

It is a super-3 number, since 3×1262020117³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1262020127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631010058 + 631010059.

It is an arithmetic number, because the mean of its divisors is an integer number (631010059).

Almost surely, 2^1262020117 is an apocalyptic number.

It is an amenable number.

1262020117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262020117 is an equidigital number, since it uses as much as digits as its factorization.

1262020117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1262020117 is about 35524.9224770442. The cubic root of 1262020117 is about 1080.6592103180.

Adding to 1262020117 its reverse (7110202621), we get a palindrome (8372222738).

The spelling of 1262020117 in words is "one billion, two hundred sixty-two million, twenty thousand, one hundred seventeen".