42831097 has 2 divisors, whose sum is σ = 42831098. Its totient is φ = 42831096.

The previous prime is 42831091. The next prime is 42831127. The reversal of 42831097 is 79013824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39576681 + 3254416 = 6291^2 + 1804^2 .

It is a cyclic number.

It is not a de Polignac number, because 42831097 - 2¹¹ = 42829049 is a prime.

It is not a weakly prime, because it can be changed into another prime (42831091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21415548 + 21415549.

It is an arithmetic number, because the mean of its divisors is an integer number (21415549).

Almost surely, 2^42831097 is an apocalyptic number.

It is an amenable number.

42831097 is a deficient number, since it is larger than the sum of its proper divisors (1).

42831097 is an equidigital number, since it uses as much as digits as its factorization.

42831097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 42831097 is about 6544.5471195492. The cubic root of 42831097 is about 349.8804952551.

The spelling of 42831097 in words is "forty-two million, eight hundred thirty-one thousand, ninety-seven".