1042522135 has 4 divisors (see below), whose sum is σ = 1251026568. Its totient is φ = 834017704.

The previous prime is 1042522109. The next prime is 1042522139. The reversal of 1042522135 is 5312252401.

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-1042522135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042522139) 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, 104252209 + ... + 104252218.

It is an arithmetic number, because the mean of its divisors is an integer number (312756642).

Almost surely, 2^1042522135 is an apocalyptic number.

1042522135 is a deficient number, since it is larger than the sum of its proper divisors (208504433).

1042522135 is an equidigital number, since it uses as much as digits as its factorization.

1042522135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208504432.

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

The square root of 1042522135 is about 32288.1113569685. Note that the first 3 decimals coincide. The cubic root of 1042522135 is about 1013.9777569954.

Adding to 1042522135 its reverse (5312252401), we get a palindrome (6354774536).

The spelling of 1042522135 in words is "one billion, forty-two million, five hundred twenty-two thousand, one hundred thirty-five".