10242391 has 2 divisors, whose sum is σ = 10242392. Its totient is φ = 10242390.

The previous prime is 10242371. The next prime is 10242437. The reversal of 10242391 is 19324201.

10242391 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10242391 - 2⁷ = 10242263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10242371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5121195 + 5121196.

It is an arithmetic number, because the mean of its divisors is an integer number (5121196).

Almost surely, 2^10242391 is an apocalyptic number.

10242391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10242391 is an equidigital number, since it uses as much as digits as its factorization.

10242391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 10242391 is about 3200.3735719444. The cubic root of 10242391 is about 217.1703095032.

Adding to 10242391 its reverse (19324201), we get a palindrome (29566592).

The spelling of 10242391 in words is "ten million, two hundred forty-two thousand, three hundred ninety-one".