4545454 has 4 divisors (see below), whose sum is σ = 6818184. Its totient is φ = 2272726.

The previous prime is 4545451. The next prime is 4545461.

It is a happy number.

4545454 is nontrivially palindromic in base 10.

4545454 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is a super-2 number, since 2×4545454² = 41322304132232, which contains 22 as substring.

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 an alternating number because its digits alternate between even and odd.

4545454 is an undulating number in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545451) 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 as a sum of consecutive naturals, namely, 1136362 + ... + 1136365.

It is an arithmetic number, because the mean of its divisors is an integer number (1704546).

Almost surely, 2^4545454 is an apocalyptic number.

4545454 is a deficient number, since it is larger than the sum of its proper divisors (2272730).

4545454 is a wasteful number, since it uses less digits than its factorization.

4545454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272729.

The product of its digits is 32000, while the sum is 31.

The square root of 4545454 is about 2132.0070356357. The cubic root of 4545454 is about 165.6503746100.

The spelling of 4545454 in words is "four million, five hundred forty-five thousand, four hundred fifty-four".