142272553 has 4 divisors (see below), whose sum is σ = 142308100. Its totient is φ = 142237008.

The previous prime is 142272527. The next prime is 142272593. The reversal of 142272553 is 355272241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355272241 = 19 ⋅18698539.

It can be written as a sum of positive squares in 2 ways, for example, as 75898944 + 66373609 = 8712^2 + 8147^2 .

It is a cyclic number.

It is not a de Polignac number, because 142272553 - 2¹⁷ = 142141481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142272523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10878 + ... + 20071.

It is an arithmetic number, because the mean of its divisors is an integer number (35577025).

Almost surely, 2^142272553 is an apocalyptic number.

It is an amenable number.

142272553 is a deficient number, since it is larger than the sum of its proper divisors (35547).

142272553 is an equidigital number, since it uses as much as digits as its factorization.

142272553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35546.

The product of its digits is 16800, while the sum is 31.

The square root of 142272553 is about 11927.8058753486. The cubic root of 142272553 is about 522.0439193729.

The spelling of 142272553 in words is "one hundred forty-two million, two hundred seventy-two thousand, five hundred fifty-three".