1142505299 has 4 divisors (see below), whose sum is σ = 1230390336. Its totient is φ = 1054620264.

The previous prime is 1142505293. The next prime is 1142505311. The reversal of 1142505299 is 9925052411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9925052411 = 31 ⋅320162981.

It is a cyclic number.

It is not a de Polignac number, because 1142505299 - 2²⁸ = 874069843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142505293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43942499 + ... + 43942524.

It is an arithmetic number, because the mean of its divisors is an integer number (307597584).

Almost surely, 2^1142505299 is an apocalyptic number.

1142505299 is a deficient number, since it is larger than the sum of its proper divisors (87885037).

1142505299 is an equidigital number, since it uses as much as digits as its factorization.

1142505299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87885036.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 1142505299 is about 33800.9659477359. The cubic root of 1142505299 is about 1045.4086141175.

The spelling of 1142505299 in words is "one billion, one hundred forty-two million, five hundred five thousand, two hundred ninety-nine".