10542139 has 8 divisors (see below), whose sum is σ = 11007360. Its totient is φ = 10084800.

The previous prime is 10542113. The next prime is 10542157. The reversal of 10542139 is 93124501.

10542139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10542139 - 2⁷ = 10542011 is a prime.

It is a super-2 number, since 2×10542139² = 222273389390642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10542199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849 + ... + 4669.

It is an arithmetic number, because the mean of its divisors is an integer number (1375920).

Almost surely, 2^10542139 is an apocalyptic number.

10542139 is a deficient number, since it is larger than the sum of its proper divisors (465221).

10542139 is an equidigital number, since it uses as much as digits as its factorization.

10542139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 10542139 is about 3246.8660274178. The cubic root of 10542139 is about 219.2685002117.

The spelling of 10542139 in words is "ten million, five hundred forty-two thousand, one hundred thirty-nine".