1142520535 has 16 divisors (see below), whose sum is σ = 1510828704. Its totient is φ = 824084352.

The previous prime is 1142520529. The next prime is 1142520539. The reversal of 1142520535 is 5350252411.

It is not a de Polignac number, because 1142520535 - 2²⁹ = 605649623 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 (1142520539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201592 + ... + 207181.

It is an arithmetic number, because the mean of its divisors is an integer number (94426794).

Almost surely, 2^1142520535 is an apocalyptic number.

1142520535 is a deficient number, since it is larger than the sum of its proper divisors (368308169).

1142520535 is a wasteful number, since it uses less digits than its factorization.

1142520535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408834.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1142520535 is about 33801.1913251589. The cubic root of 1142520535 is about 1045.4132611491.

Adding to 1142520535 its reverse (5350252411), we get a palindrome (6492772946).

The spelling of 1142520535 in words is "one billion, one hundred forty-two million, five hundred twenty thousand, five hundred thirty-five".