10542009 has 16 divisors (see below), whose sum is σ = 14598144. Its totient is φ = 6762000.

The previous prime is 10542001. The next prime is 10542011. The reversal of 10542009 is 90024501.

It is not a de Polignac number, because 10542009 - 2³ = 10542001 is a prime.

It is a super-2 number, since 2×10542009² = 222267907512162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10542001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8584 + ... + 9734.

It is an arithmetic number, because the mean of its divisors is an integer number (912384).

Almost surely, 2^10542009 is an apocalyptic number.

It is an amenable number.

10542009 is a deficient number, since it is larger than the sum of its proper divisors (4056135).

10542009 is a wasteful number, since it uses less digits than its factorization.

10542009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 10542009 is about 3246.8460080515. The cubic root of 10542009 is about 219.2675989075.

The spelling of 10542009 in words is "ten million, five hundred forty-two thousand, nine".