142455853 has 4 divisors (see below), whose sum is σ = 145930428. Its totient is φ = 138981280.

The previous prime is 142455839. The next prime is 142455857. The reversal of 142455853 is 358554241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24472809 + 117983044 = 4947^2 + 10862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142455853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142455857) 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, 1737226 + ... + 1737307.

It is an arithmetic number, because the mean of its divisors is an integer number (36482607).

Almost surely, 2^142455853 is an apocalyptic number.

It is an amenable number.

142455853 is a deficient number, since it is larger than the sum of its proper divisors (3474575).

142455853 is an equidigital number, since it uses as much as digits as its factorization.

142455853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474574.

The product of its digits is 96000, while the sum is 37.

The square root of 142455853 is about 11935.4871287267. The cubic root of 142455853 is about 522.2680187810.

The spelling of 142455853 in words is "one hundred forty-two million, four hundred fifty-five thousand, eight hundred fifty-three".