42850169 has 2 divisors, whose sum is σ = 42850170. Its totient is φ = 42850168.

The previous prime is 42850151. The next prime is 42850201. The reversal of 42850169 is 96105824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23814400 + 19035769 = 4880^2 + 4363^2 .

It is a cyclic number.

It is not a de Polignac number, because 42850169 - 2¹⁶ = 42784633 is a prime.

It is a super-2 number, since 2×42850169² = 3672273966657122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42850069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21425084 + 21425085.

It is an arithmetic number, because the mean of its divisors is an integer number (21425085).

Almost surely, 2^42850169 is an apocalyptic number.

It is an amenable number.

42850169 is a deficient number, since it is larger than the sum of its proper divisors (1).

42850169 is an equidigital number, since it uses as much as digits as its factorization.

42850169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 42850169 is about 6546.0040482725. The cubic root of 42850169 is about 349.9324196050.

The spelling of 42850169 in words is "forty-two million, eight hundred fifty thousand, one hundred sixty-nine".