1262126061 has 12 divisors (see below), whose sum is σ = 2083509792. Its totient is φ = 721214856.

The previous prime is 1262126057. The next prime is 1262126069. The reversal of 1262126061 is 1606212621.

1262126061 is a `hidden beast` number, since 12 + 621 + 26 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 1262126061 - 2² = 1262126057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262126069) 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 in 11 ways as a sum of consecutive naturals, for example, 10016811 + ... + 10016936.

It is an arithmetic number, because the mean of its divisors is an integer number (173625816).

Almost surely, 2^1262126061 is an apocalyptic number.

It is an amenable number.

1262126061 is a deficient number, since it is larger than the sum of its proper divisors (821383731).

1262126061 is a wasteful number, since it uses less digits than its factorization.

1262126061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20033760 (or 20033757 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1262126061 is about 35526.4135679356. The cubic root of 1262126061 is about 1080.6894491798.

Adding to 1262126061 its reverse (1606212621), we get a palindrome (2868338682).

The spelling of 1262126061 in words is "one billion, two hundred sixty-two million, one hundred twenty-six thousand, sixty-one".