4545142 has 24 divisors (see below), whose sum is σ = 8351640. Its totient is φ = 1844640.

The previous prime is 4545139. The next prime is 4545157. The reversal of 4545142 is 2415454.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642 + ... + 3082.

It is an arithmetic number, because the mean of its divisors is an integer number (347985).

Almost surely, 2^4545142 is an apocalyptic number.

4545142 is a deficient number, since it is larger than the sum of its proper divisors (3806498).

4545142 is a wasteful number, since it uses less digits than its factorization.

4545142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476 (or 2469 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 4545142 is about 2131.9338638898. The cubic root of 4545142 is about 165.6465844422.

The spelling of 4545142 in words is "four million, five hundred forty-five thousand, one hundred forty-two".