42315269 has 2 divisors, whose sum is σ = 42315270. Its totient is φ = 42315268.

The previous prime is 42315241. The next prime is 42315277. The reversal of 42315269 is 96251324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39526369 + 2788900 = 6287^2 + 1670^2 .

It is a cyclic number.

It is not a de Polignac number, because 42315269 - 2¹² = 42311173 is a prime.

It is a super-2 number, since 2×42315269² = 3581163981084722, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42315769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21157634 + 21157635.

It is an arithmetic number, because the mean of its divisors is an integer number (21157635).

Almost surely, 2^42315269 is an apocalyptic number.

It is an amenable number.

42315269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42315269 is an equidigital number, since it uses as much as digits as its factorization.

42315269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 42315269 is about 6505.0187547770. The cubic root of 42315269 is about 348.4702460554.

The spelling of 42315269 in words is "forty-two million, three hundred fifteen thousand, two hundred sixty-nine".