4545729 has 12 divisors (see below), whose sum is σ = 6602596. Its totient is φ = 3013632.

The previous prime is 4545727. The next prime is 4545733. The reversal of 4545729 is 9275454.

4545729 = 47² + 48² + ... + 239².

It can be written as a sum of positive squares in 2 ways, for example, as 3069504 + 1476225 = 1752^2 + 1215^2 .

It is not a de Polignac number, because 4545729 - 2¹ = 4545727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4545693 and 4545702.

It is not an unprimeable number, because it can be changed into a prime (4545727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429 + ... + 3045.

Almost surely, 2^4545729 is an apocalyptic number.

It is an amenable number.

4545729 is a deficient number, since it is larger than the sum of its proper divisors (2056867).

4545729 is a wasteful number, since it uses less digits than its factorization.

4545729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2813 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 4545729 is about 2132.0715278808. The cubic root of 4545729 is about 165.6537151589.

It can be divided in two parts, 454572 and 9, that added together give a triangular number (454581 = T₉₅₃).

The spelling of 4545729 in words is "four million, five hundred forty-five thousand, seven hundred twenty-nine".