42153329 has 2 divisors, whose sum is σ = 42153330. Its totient is φ = 42153328.

The previous prime is 42153263. The next prime is 42153359. The reversal of 42153329 is 92335124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38440000 + 3713329 = 6200^2 + 1927^2 .

It is a cyclic number.

It is not a de Polignac number, because 42153329 - 2²⁰ = 41104753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42153359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21076664 + 21076665.

It is an arithmetic number, because the mean of its divisors is an integer number (21076665).

Almost surely, 2^42153329 is an apocalyptic number.

It is an amenable number.

42153329 is a deficient number, since it is larger than the sum of its proper divisors (1).

42153329 is an equidigital number, since it uses as much as digits as its factorization.

42153329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 42153329 is about 6492.5595107015. The cubic root of 42153329 is about 348.0251473658.

The spelling of 42153329 in words is "forty-two million, one hundred fifty-three thousand, three hundred twenty-nine".