1242534535 has 32 divisors (see below), whose sum is σ = 1669248000. Its totient is φ = 880152960.

The previous prime is 1242534521. The next prime is 1242534593. The reversal of 1242534535 is 5354352421.

It is not a de Polignac number, because 1242534535 - 2²⁵ = 1208980103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1242534535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 590916 + ... + 593014.

It is an arithmetic number, because the mean of its divisors is an integer number (52164000).

Almost surely, 2^1242534535 is an apocalyptic number.

1242534535 is a deficient number, since it is larger than the sum of its proper divisors (426713465).

1242534535 is a wasteful number, since it uses less digits than its factorization.

1242534535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391.

The product of its digits is 72000, while the sum is 34.

The square root of 1242534535 is about 35249.6033311015. The cubic root of 1242534535 is about 1075.0685472785.

Adding to 1242534535 its reverse (5354352421), we get a palindrome (6596886956).

The spelling of 1242534535 in words is "one billion, two hundred forty-two million, five hundred thirty-four thousand, five hundred thirty-five".