142851033 has 20 divisors (see below), whose sum is σ = 229811428. Its totient is φ = 87907680.

The previous prime is 142851029. The next prime is 142851041. The reversal of 142851033 is 330158241.

It is a happy number.

142851033 is a `hidden beast` number, since 142 + 8 + 510 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20903184 + 121947849 = 4572^2 + 11043^2 .

It is not a de Polignac number, because 142851033 - 2² = 142851029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142850988 and 142851006.

It is not an unprimeable number, because it can be changed into a prime (142851053) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66778 + ... + 68883.

Almost surely, 2^142851033 is an apocalyptic number.

142851033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142851033 is a deficient number, since it is larger than the sum of its proper divisors (86960395).

142851033 is a wasteful number, since it uses less digits than its factorization.

142851033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135686 (or 135677 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 142851033 is about 11952.0304969490. The cubic root of 142851033 is about 522.7505058568.

The spelling of 142851033 in words is "one hundred forty-two million, eight hundred fifty-one thousand, thirty-three".