10542309 has 4 divisors (see below), whose sum is σ = 14056416. Its totient is φ = 7028204.

The previous prime is 10542307. The next prime is 10542319. The reversal of 10542309 is 90324501.

10542309 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10542309 - 2¹ = 10542307 is a prime.

It is a super-2 number, since 2×10542309² = 222280558102962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10542307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757049 + ... + 1757054.

It is an arithmetic number, because the mean of its divisors is an integer number (3514104).

Almost surely, 2^10542309 is an apocalyptic number.

It is an amenable number.

10542309 is a deficient number, since it is larger than the sum of its proper divisors (3514107).

10542309 is an equidigital number, since it uses as much as digits as its factorization.

10542309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514106.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 10542309 is about 3246.8922064029. The cubic root of 10542309 is about 219.2696788291.

The spelling of 10542309 in words is "ten million, five hundred forty-two thousand, three hundred nine".