42599129 has 2 divisors, whose sum is σ = 42599130. Its totient is φ = 42599128.

The previous prime is 42599119. The next prime is 42599143. The reversal of 42599129 is 92199524.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27583504 + 15015625 = 5252^2 + 3875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42599129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42599119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21299564 + 21299565.

It is an arithmetic number, because the mean of its divisors is an integer number (21299565).

Almost surely, 2^42599129 is an apocalyptic number.

It is an amenable number.

42599129 is a deficient number, since it is larger than the sum of its proper divisors (1).

42599129 is an equidigital number, since it uses as much as digits as its factorization.

42599129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 42599129 is about 6526.8008242936. The cubic root of 42599129 is about 349.2477148193.

The spelling of 42599129 in words is "forty-two million, five hundred ninety-nine thousand, one hundred twenty-nine".