142154533 has 4 divisors (see below), whose sum is σ = 144836748. Its totient is φ = 139472320.

The previous prime is 142154531. The next prime is 142154539. The reversal of 142154533 is 335451241.

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 103999204 + 38155329 = 10198^2 + 6177^2 .

It is a cyclic number.

It is not a de Polignac number, because 142154533 - 2¹ = 142154531 is a prime.

It is a super-2 number, since 2×142154533² = 40415822504896178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142154531) 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, 1341028 + ... + 1341133.

It is an arithmetic number, because the mean of its divisors is an integer number (36209187).

Almost surely, 2^142154533 is an apocalyptic number.

It is an amenable number.

142154533 is a deficient number, since it is larger than the sum of its proper divisors (2682215).

142154533 is an equidigital number, since it uses as much as digits as its factorization.

142154533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682214.

The product of its digits is 7200, while the sum is 28.

The square root of 142154533 is about 11922.8575853274. The cubic root of 142154533 is about 521.8995282817.

The spelling of 142154533 in words is "one hundred forty-two million, one hundred fifty-four thousand, five hundred thirty-three".