42098131 has 2 divisors, whose sum is σ = 42098132. Its totient is φ = 42098130.

The previous prime is 42098107. The next prime is 42098141. The reversal of 42098131 is 13189024.

It is a happy number.

42098131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42098131 - 2⁵ = 42098099 is a prime.

It is a super-2 number, since 2×42098131² = 3544505267386322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42098131.

It is not a weakly prime, because it can be changed into another prime (42098141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21049065 + 21049066.

It is an arithmetic number, because the mean of its divisors is an integer number (21049066).

Almost surely, 2^42098131 is an apocalyptic number.

42098131 is a deficient number, since it is larger than the sum of its proper divisors (1).

42098131 is an equidigital number, since it uses as much as digits as its factorization.

42098131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 42098131 is about 6488.3072522808. The cubic root of 42098131 is about 347.8731729456.

The spelling of 42098131 in words is "forty-two million, ninety-eight thousand, one hundred thirty-one".