1042540511 has 4 divisors (see below), whose sum is σ = 1064722272. Its totient is φ = 1020358752.

The previous prime is 1042540489. The next prime is 1042540529. The reversal of 1042540511 is 1150452401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042540511 is a prime.

It is a super-2 number, since 2×1042540511² = 2173781434152282242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042540531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11090810 + ... + 11090903.

It is an arithmetic number, because the mean of its divisors is an integer number (266180568).

Almost surely, 2^1042540511 is an apocalyptic number.

1042540511 is a deficient number, since it is larger than the sum of its proper divisors (22181761).

1042540511 is an equidigital number, since it uses as much as digits as its factorization.

1042540511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22181760.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1042540511 is about 32288.3959186578. The cubic root of 1042540511 is about 1013.9837145814.

Adding to 1042540511 its reverse (1150452401), we get a palindrome (2192992912).

The spelling of 1042540511 in words is "one billion, forty-two million, five hundred forty thousand, five hundred eleven".