1142536549 has 8 divisors (see below), whose sum is σ = 1424461248. Its totient is φ = 890288160.

The previous prime is 1142536547. The next prime is 1142536553. The reversal of 1142536549 is 9456352411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142536549 - 2¹ = 1142536547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142536547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7418992 + ... + 7419145.

It is an arithmetic number, because the mean of its divisors is an integer number (178057656).

Almost surely, 2^1142536549 is an apocalyptic number.

It is an amenable number.

1142536549 is a deficient number, since it is larger than the sum of its proper divisors (281924699).

1142536549 is a wasteful number, since it uses less digits than its factorization.

1142536549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14838155.

The product of its digits is 129600, while the sum is 40.

The square root of 1142536549 is about 33801.4282094707. The cubic root of 1142536549 is about 1045.4181454289.

It can be divided in two parts, 11425 and 36549, that added together give a palindrome (47974).

The spelling of 1142536549 in words is "one billion, one hundred forty-two million, five hundred thirty-six thousand, five hundred forty-nine".