1042540513 has 6 divisors (see below), whose sum is σ = 1212751266. Its totient is φ = 893606112.

The previous prime is 1042540489. The next prime is 1042540529. The reversal of 1042540513 is 3150452401.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 846344464 + 196196049 = 29092^2 + 14007^2 .

It is not a de Polignac number, because 1042540513 - 2²⁹ = 505669601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042540553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10638120 + ... + 10638217.

It is an arithmetic number, because the mean of its divisors is an integer number (202125211).

Almost surely, 2^1042540513 is an apocalyptic number.

It is an amenable number.

1042540513 is a deficient number, since it is larger than the sum of its proper divisors (170210753).

1042540513 is an equidigital number, since it uses as much as digits as its factorization.

1042540513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21276351 (or 21276344 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1042540513 is about 32288.3959496287. The cubic root of 1042540513 is about 1013.9837152298.

Adding to 1042540513 its reverse (3150452401), we get a palindrome (4192992914).

The spelling of 1042540513 in words is "one billion, forty-two million, five hundred forty thousand, five hundred thirteen".