142545499 has 4 divisors (see below), whose sum is σ = 142569936. Its totient is φ = 142521064.

The previous prime is 142545449. The next prime is 142545523. The reversal of 142545499 is 994545241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142545499 - 2¹⁹ = 142021211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142545419) 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, 2217 + ... + 17029.

It is an arithmetic number, because the mean of its divisors is an integer number (35642484).

Almost surely, 2^142545499 is an apocalyptic number.

142545499 is a deficient number, since it is larger than the sum of its proper divisors (24437).

142545499 is an equidigital number, since it uses as much as digits as its factorization.

142545499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24436.

The product of its digits is 259200, while the sum is 43.

The square root of 142545499 is about 11939.2419776132. The cubic root of 142545499 is about 522.3775484360.

The spelling of 142545499 in words is "one hundred forty-two million, five hundred forty-five thousand, four hundred ninety-nine".