653203145 has 8 divisors (see below), whose sum is σ = 895821504. Its totient is φ = 447910704.

The previous prime is 653203123. The next prime is 653203157. The reversal of 653203145 is 541302356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 653203145 - 2⁶ = 653203081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9331439 + ... + 9331508.

It is an arithmetic number, because the mean of its divisors is an integer number (111977688).

Almost surely, 2^653203145 is an apocalyptic number.

It is an amenable number.

653203145 is a deficient number, since it is larger than the sum of its proper divisors (242618359).

653203145 is a wasteful number, since it uses less digits than its factorization.

653203145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18662959.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 653203145 is about 25557.8392083525. The cubic root of 653203145 is about 867.6596920510.

The spelling of 653203145 in words is "six hundred fifty-three million, two hundred three thousand, one hundred forty-five".