1142545000 has 40 divisors (see below), whose sum is σ = 2676994650. Its totient is φ = 457016000.

The previous prime is 1142544967. The next prime is 1142545013. The reversal of 1142545000 is 5452411.

It can be written as a sum of positive squares in 5 ways, for example, as 254147364 + 888397636 = 15942^2 + 29806^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 109255 + ... + 119254.

Almost surely, 2^1142545000 is an apocalyptic number.

1142545000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142545000 is an abundant number, since it is smaller than the sum of its proper divisors (1534449650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142545000 is an equidigital number, since it uses as much as digits as its factorization.

1142545000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228535 (or 228516 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1142545000 is about 33801.5532187502. The cubic root of 1142545000 is about 1045.4207229706.

Adding to 1142545000 its reverse (5452411), we get a palindrome (1147997411).

The spelling of 1142545000 in words is "one billion, one hundred forty-two million, five hundred forty-five thousand".