42029161 has 2 divisors, whose sum is σ = 42029162. Its totient is φ = 42029160.

The previous prime is 42029153. The next prime is 42029173. The reversal of 42029161 is 16192024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30085225 + 11943936 = 5485^2 + 3456^2 .

It is a cyclic number.

It is not a de Polignac number, because 42029161 - 2³ = 42029153 is a prime.

It is not a weakly prime, because it can be changed into another prime (42029101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21014580 + 21014581.

It is an arithmetic number, because the mean of its divisors is an integer number (21014581).

Almost surely, 2^42029161 is an apocalyptic number.

It is an amenable number.

42029161 is a deficient number, since it is larger than the sum of its proper divisors (1).

42029161 is an equidigital number, since it uses as much as digits as its factorization.

42029161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 42029161 is about 6482.9901280196. The cubic root of 42029161 is about 347.6830938241.

The spelling of 42029161 in words is "forty-two million, twenty-nine thousand, one hundred sixty-one".