42002153 has 2 divisors, whose sum is σ = 42002154. Its totient is φ = 42002152.

The previous prime is 42002143. The next prime is 42002197. The reversal of 42002153 is 35120024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35200489 + 6801664 = 5933^2 + 2608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42002153 is a prime.

It is not a weakly prime, because it can be changed into another prime (42002113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21001076 + 21001077.

It is an arithmetic number, because the mean of its divisors is an integer number (21001077).

Almost surely, 2^42002153 is an apocalyptic number.

It is an amenable number.

42002153 is a deficient number, since it is larger than the sum of its proper divisors (1).

42002153 is an equidigital number, since it uses as much as digits as its factorization.

42002153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 42002153 is about 6480.9068038354. The cubic root of 42002153 is about 347.6086039787.

Adding to 42002153 its reverse (35120024), we get a palindrome (77122177).

The spelling of 42002153 in words is "forty-two million, two thousand, one hundred fifty-three".