1042543215 has 24 divisors (see below), whose sum is σ = 2065229088. Its totient is φ = 476591040.

The previous prime is 1042543211. The next prime is 1042543277. The reversal of 1042543215 is 5123452401.

1042543215 is a `hidden beast` number, since 104 + 2 + 543 + 2 + 15 = 666.

It is not a de Polignac number, because 1042543215 - 2² = 1042543211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042543211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1654516 + ... + 1655145.

It is an arithmetic number, because the mean of its divisors is an integer number (86051212).

Almost surely, 2^1042543215 is an apocalyptic number.

1042543215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1042543215 is a deficient number, since it is larger than the sum of its proper divisors (1022685873).

1042543215 is a wasteful number, since it uses less digits than its factorization.

1042543215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309679 (or 3309676 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1042543215 is about 32288.4377912590. The cubic root of 1042543215 is about 1013.9845912251.

Adding to 1042543215 its reverse (5123452401), we get a palindrome (6165995616).

The spelling of 1042543215 in words is "one billion, forty-two million, five hundred forty-three thousand, two hundred fifteen".