1142544545 has 8 divisors (see below), whose sum is σ = 1373137920. Its totient is φ = 912646000.

The previous prime is 1142544539. The next prime is 1142544547. The reversal of 1142544545 is 5454452411.

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

It is not a de Polignac number, because 1142544545 - 2²⁰ = 1141495969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142544547) 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, 170081 + ... + 176670.

It is an arithmetic number, because the mean of its divisors is an integer number (171642240).

Almost surely, 2^1142544545 is an apocalyptic number.

It is an amenable number.

1142544545 is a deficient number, since it is larger than the sum of its proper divisors (230593375).

1142544545 is an equidigital number, since it uses as much as digits as its factorization.

1142544545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347415.

The product of its digits is 64000, while the sum is 35.

The square root of 1142544545 is about 33801.5464882896. The cubic root of 1142544545 is about 1045.4205841967.

Adding to 1142544545 its reverse (5454452411), we get a palindrome (6596996956).

The spelling of 1142544545 in words is "one billion, one hundred forty-two million, five hundred forty-four thousand, five hundred forty-five".