10542493 has 4 divisors (see below), whose sum is σ = 11353468. Its totient is φ = 9731520.

The previous prime is 10542491. The next prime is 10542503. The reversal of 10542493 is 39424501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39424501 = 191 ⋅206411.

It can be written as a sum of positive squares in 2 ways, for example, as 6959044 + 3583449 = 2638^2 + 1893^2 .

It is a cyclic number.

It is not a de Polignac number, because 10542493 - 2¹ = 10542491 is a prime.

It is a super-2 number, since 2×10542493² = 222288317310098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10542491) 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 3 ways as a sum of consecutive naturals, for example, 405468 + ... + 405493.

It is an arithmetic number, because the mean of its divisors is an integer number (2838367).

Almost surely, 2^10542493 is an apocalyptic number.

10542493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10542493 is a deficient number, since it is larger than the sum of its proper divisors (810975).

10542493 is an equidigital number, since it uses as much as digits as its factorization.

10542493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810974.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 10542493 is about 3246.9205410666. The cubic root of 10542493 is about 219.2709544948.

Adding to 10542493 its reverse (39424501), we get a palindrome (49966994).

The spelling of 10542493 in words is "ten million, five hundred forty-two thousand, four hundred ninety-three".