30249545 has 16 divisors (see below), whose sum is σ = 38683008. Its totient is φ = 22629120.

The previous prime is 30249503. The next prime is 30249553. The reversal of 30249545 is 54594203.

It is a happy number.

It is not a de Polignac number, because 30249545 - 2¹⁰ = 30248521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13130 + ... + 15260.

It is an arithmetic number, because the mean of its divisors is an integer number (2417688).

Almost surely, 2^30249545 is an apocalyptic number.

It is an amenable number.

30249545 is a deficient number, since it is larger than the sum of its proper divisors (8433463).

30249545 is a wasteful number, since it uses less digits than its factorization.

30249545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 30249545 is about 5499.9586362081. The cubic root of 30249545 is about 311.5824219989.

The spelling of 30249545 in words is "thirty million, two hundred forty-nine thousand, five hundred forty-five".