4547542 has 4 divisors (see below), whose sum is σ = 6821316. Its totient is φ = 2273770.

The previous prime is 4547539. The next prime is 4547549. The reversal of 4547542 is 2457454.

It is a semiprime because it is the product of two primes.

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 not an unprimeable number, because it can be changed into a prime (4547549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136884 + ... + 1136887.

It is an arithmetic number, because the mean of its divisors is an integer number (1705329).

Almost surely, 2^4547542 is an apocalyptic number.

4547542 is a deficient number, since it is larger than the sum of its proper divisors (2273774).

4547542 is a wasteful number, since it uses less digits than its factorization.

4547542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273773.

The product of its digits is 22400, while the sum is 31.

The square root of 4547542 is about 2132.4966588485. The cubic root of 4547542 is about 165.6757351156.

The spelling of 4547542 in words is "four million, five hundred forty-seven thousand, five hundred forty-two".