142040033 has 2 divisors, whose sum is σ = 142040034. Its totient is φ = 142040032.

The previous prime is 142040023. The next prime is 142040071. The reversal of 142040033 is 330040241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 66210769 = 8708^2 + 8137^2 .

It is a cyclic number.

It is not a de Polignac number, because 142040033 - 2¹² = 142035937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142039993 and 142040020.

It is not a weakly prime, because it can be changed into another prime (142040023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71020016 + 71020017.

It is an arithmetic number, because the mean of its divisors is an integer number (71020017).

Almost surely, 2^142040033 is an apocalyptic number.

It is an amenable number.

142040033 is a deficient number, since it is larger than the sum of its proper divisors (1).

142040033 is an equidigital number, since it uses as much as digits as its factorization.

142040033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 142040033 is about 11918.0549168058. The cubic root of 142040033 is about 521.7593673220.

Adding to 142040033 its reverse (330040241), we get a palindrome (472080274).

The spelling of 142040033 in words is "one hundred forty-two million, forty thousand, thirty-three".