142747533 has 6 divisors (see below), whose sum is σ = 206190894. Its totient is φ = 95165016.

The previous prime is 142747511. The next prime is 142747537. The reversal of 142747533 is 335747241.

It can be written as a sum of positive squares in only one way, i.e., 99740169 + 43007364 = 9987^2 + 6558^2 .

It is not a de Polignac number, because 142747533 - 2²⁰ = 141698957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142747537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7930410 + ... + 7930427.

It is an arithmetic number, because the mean of its divisors is an integer number (34365149).

Almost surely, 2^142747533 is an apocalyptic number.

It is an amenable number.

142747533 is a deficient number, since it is larger than the sum of its proper divisors (63443361).

142747533 is a wasteful number, since it uses less digits than its factorization.

142747533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15860843 (or 15860840 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 142747533 is about 11947.6999041657. The cubic root of 142747533 is about 522.6242257071.

The spelling of 142747533 in words is "one hundred forty-two million, seven hundred forty-seven thousand, five hundred thirty-three".