1015126542 has 96 divisors (see below), whose sum is σ = 2401850880. Its totient is φ = 308609280.

The previous prime is 1015126517. The next prime is 1015126549. The reversal of 1015126542 is 2456215101.

1015126542 is a `hidden beast` number, since 1 + 0 + 1 + 5 + 1 + 2 + 654 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015126549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2355067 + ... + 2355497.

It is an arithmetic number, because the mean of its divisors is an integer number (25019280).

Almost surely, 2^1015126542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1015126542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1200925440).

1015126542 is an abundant number, since it is smaller than the sum of its proper divisors (1386724338).

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

1015126542 is a wasteful number, since it uses less digits than its factorization.

1015126542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1015126542 is about 31861.0505476514. The cubic root of 1015126542 is about 1005.0169686004.

The spelling of 1015126542 in words is "one billion, fifteen million, one hundred twenty-six thousand, five hundred forty-two".