142305020453 has 4 divisors (see below), whose sum is σ = 142322980320. Its totient is φ = 142287060588.

The previous prime is 142305020447. The next prime is 142305020479. The reversal of 142305020453 is 354020503241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142305020453 - 2²² = 142300826149 is a prime.

It is a super-2 number, since 2×142305020453² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142305020413) 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, 8968043 + ... + 8983896.

It is an arithmetic number, because the mean of its divisors is an integer number (35580745080).

Almost surely, 2^142305020453 is an apocalyptic number.

It is an amenable number.

142305020453 is a deficient number, since it is larger than the sum of its proper divisors (17959867).

142305020453 is an equidigital number, since it uses as much as digits as its factorization.

142305020453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17959866.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 142305020453 its reverse (354020503241), we get a palindrome (496325523694).

The spelling of 142305020453 in words is "one hundred forty-two billion, three hundred five million, twenty thousand, four hundred fifty-three".