1262742126 has 8 divisors (see below), whose sum is σ = 2525484264. Its totient is φ = 420914040.

The previous prime is 1262742121. The next prime is 1262742193. The reversal of 1262742126 is 6212472621.

It is a sphenic number, since it is the product of 3 distinct primes.

1262742126 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262742121) 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 3 ways as a sum of consecutive naturals, for example, 105228505 + ... + 105228516.

It is an arithmetic number, because the mean of its divisors is an integer number (315685533).

Almost surely, 2^1262742126 is an apocalyptic number.

1262742126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1262742126 is a wasteful number, since it uses less digits than its factorization.

1262742126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210457026.

The product of its digits is 16128, while the sum is 33.

The square root of 1262742126 is about 35535.0830307177. The cubic root of 1262742126 is about 1080.8652548224.

The spelling of 1262742126 in words is "one billion, two hundred sixty-two million, seven hundred forty-two thousand, one hundred twenty-six".