42298129 has 2 divisors, whose sum is σ = 42298130. Its totient is φ = 42298128.

The previous prime is 42298049. The next prime is 42298163. The reversal of 42298129 is 92189224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21641104 + 20657025 = 4652^2 + 4545^2 .

It is a cyclic number.

It is not a de Polignac number, because 42298129 - 2⁷ = 42298001 is a prime.

It is not a weakly prime, because it can be changed into another prime (42298189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21149064 + 21149065.

It is an arithmetic number, because the mean of its divisors is an integer number (21149065).

Almost surely, 2^42298129 is an apocalyptic number.

It is an amenable number.

42298129 is a deficient number, since it is larger than the sum of its proper divisors (1).

42298129 is an equidigital number, since it uses as much as digits as its factorization.

42298129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 42298129 is about 6503.7011770222. The cubic root of 42298129 is about 348.4231898605.

The spelling of 42298129 in words is "forty-two million, two hundred ninety-eight thousand, one hundred twenty-nine".