10542021 has 8 divisors (see below), whose sum is σ = 16064064. Its totient is φ = 6024000.

The previous prime is 10542011. The next prime is 10542029. The reversal of 10542021 is 12024501.

10542021 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 sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10542021 - 2¹⁰ = 10540997 is a prime.

It is a super-2 number, since 2×10542021² = 222268413528882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10542029) 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, 250980 + ... + 251021.

It is an arithmetic number, because the mean of its divisors is an integer number (2008008).

Almost surely, 2^10542021 is an apocalyptic number.

It is an amenable number.

10542021 is a deficient number, since it is larger than the sum of its proper divisors (5522043).

10542021 is an equidigital number, since it uses as much as digits as its factorization.

10542021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502011.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10542021 is about 3246.8478559982. The cubic root of 10542021 is about 219.2676821051.

Adding to 10542021 its reverse (12024501), we get a palindrome (22566522).

The spelling of 10542021 in words is "ten million, five hundred forty-two thousand, twenty-one".