142666353 has 20 divisors (see below), whose sum is σ = 214371828. Its totient is φ = 94551840.

The previous prime is 142666333. The next prime is 142666361. The reversal of 142666353 is 353666241.

It can be written as a sum of positive squares in 2 ways, for example, as 110313009 + 32353344 = 10503^2 + 5688^2 .

It is not a de Polignac number, because 142666353 - 2⁶ = 142666289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142666333) 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 19 ways as a sum of consecutive naturals, for example, 8923 + ... + 19103.

Almost surely, 2^142666353 is an apocalyptic number.

It is an amenable number.

142666353 is a deficient number, since it is larger than the sum of its proper divisors (71705475).

142666353 is a wasteful number, since it uses less digits than its factorization.

142666353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10366 (or 10357 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 142666353 is about 11944.3021143975. The cubic root of 142666353 is about 522.5251354254.

The spelling of 142666353 in words is "one hundred forty-two million, six hundred sixty-six thousand, three hundred fifty-three".