42131093 has 2 divisors, whose sum is σ = 42131094. Its totient is φ = 42131092.

The previous prime is 42131081. The next prime is 42131119. The reversal of 42131093 is 39013124.

42131093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41692849 + 438244 = 6457^2 + 662^2 .

It is a cyclic number.

It is not a de Polignac number, because 42131093 - 2⁶ = 42131029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42133093) 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, 21065546 + 21065547.

It is an arithmetic number, because the mean of its divisors is an integer number (21065547).

Almost surely, 2^42131093 is an apocalyptic number.

It is an amenable number.

42131093 is a deficient number, since it is larger than the sum of its proper divisors (1).

42131093 is an equidigital number, since it uses as much as digits as its factorization.

42131093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 42131093 is about 6490.8468630834. The cubic root of 42131093 is about 347.9639418534.

The spelling of 42131093 in words is "forty-two million, one hundred thirty-one thousand, ninety-three".