9128542 has 4 divisors (see below), whose sum is σ = 13692816. Its totient is φ = 4564270.

The previous prime is 9128521. The next prime is 9128557. The reversal of 9128542 is 2458219.

9128542 is digitally balanced in base 2, because in such base 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 an emirpimes, since its reverse is a distinct semiprime: 2458219 = 421 ⋅5839.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2282134 + ... + 2282137.

It is an arithmetic number, because the mean of its divisors is an integer number (3423204).

Almost surely, 2^9128542 is an apocalyptic number.

9128542 is a deficient number, since it is larger than the sum of its proper divisors (4564274).

9128542 is a wasteful number, since it uses less digits than its factorization.

9128542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564273.

The product of its digits is 5760, while the sum is 31.

The square root of 9128542 is about 3021.3477125283. The cubic root of 9128542 is about 208.9939941652.

The spelling of 9128542 in words is "nine million, one hundred twenty-eight thousand, five hundred forty-two".