45209529 has 16 divisors (see below), whose sum is σ = 67080640. Its totient is φ = 30093120.

The previous prime is 45209497. The next prime is 45209599. The reversal of 45209529 is 92590254.

It is a happy number.

It is not a de Polignac number, because 45209529 - 2⁵ = 45209497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45209493 and 45209502.

It is not an unprimeable number, because it can be changed into a prime (45209599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34209 + ... + 35505.

It is an arithmetic number, because the mean of its divisors is an integer number (4192540).

Almost surely, 2^45209529 is an apocalyptic number.

It is an amenable number.

45209529 is a deficient number, since it is larger than the sum of its proper divisors (21871111).

45209529 is a wasteful number, since it uses less digits than its factorization.

45209529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597 (or 2591 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 45209529 is about 6723.8031648763. The cubic root of 45209529 is about 356.2405293881.

The spelling of 45209529 in words is "forty-five million, two hundred nine thousand, five hundred twenty-nine".