42098141 has 2 divisors, whose sum is σ = 42098142. Its totient is φ = 42098140.

The previous prime is 42098131. The next prime is 42098143. The reversal of 42098141 is 14189024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24700900 + 17397241 = 4970^2 + 4171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42098141 is a prime.

It is a Sophie Germain prime.

Together with 42098143, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42098143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21049070 + 21049071.

It is an arithmetic number, because the mean of its divisors is an integer number (21049071).

Almost surely, 2^42098141 is an apocalyptic number.

It is an amenable number.

42098141 is a deficient number, since it is larger than the sum of its proper divisors (1).

42098141 is an equidigital number, since it uses as much as digits as its factorization.

42098141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 42098141 is about 6488.3080228978. The cubic root of 42098141 is about 347.8732004902.

The spelling of 42098141 in words is "forty-two million, ninety-eight thousand, one hundred forty-one".