142305140352553 has 4 divisors (see below), whose sum is σ = 142454463690708. Its totient is φ = 142155817014400.

The previous prime is 142305140352517. The next prime is 142305140352623. The reversal of 142305140352553 is 355253041503241.

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 85865575911424 + 56439564441129 = 9266368^2 + 7512627^2 .

It is a cyclic number.

It is not a de Polignac number, because 142305140352553 - 2¹⁷ = 142305140221481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142305140352953) 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, 74661667648 + ... + 74661669553.

It is an arithmetic number, because the mean of its divisors is an integer number (35613615922677).

Almost surely, 2^{142305140352553} is an apocalyptic number.

It is an amenable number.

142305140352553 is a deficient number, since it is larger than the sum of its proper divisors (149323338155).

142305140352553 is an equidigital number, since it uses as much as digits as its factorization.

142305140352553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149323338154.

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 142305140352553 its reverse (355253041503241), we get a palindrome (497558181855794).

The spelling of 142305140352553 in words is "one hundred forty-two trillion, three hundred five billion, one hundred forty million, three hundred fifty-two thousand, five hundred fifty-three".