153203045 has 4 divisors (see below), whose sum is σ = 183843660. Its totient is φ = 122562432.

The previous prime is 153202991. The next prime is 153203053. The reversal of 153203045 is 540302351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540302351 = 6619 ⋅81629.

It can be written as a sum of positive squares in 2 ways, for example, as 88529281 + 64673764 = 9409^2 + 8042^2 .

It is a cyclic number.

It is not a de Polignac number, because 153203045 - 2⁸ = 153202789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153203045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15320300 + ... + 15320309.

It is an arithmetic number, because the mean of its divisors is an integer number (45960915).

Almost surely, 2^153203045 is an apocalyptic number.

It is an amenable number.

153203045 is a deficient number, since it is larger than the sum of its proper divisors (30640615).

153203045 is an equidigital number, since it uses as much as digits as its factorization.

153203045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30640614.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 153203045 is about 12377.5217632610. The cubic root of 153203045 is about 535.0846170059.

Adding to 153203045 its reverse (540302351), we get a palindrome (693505396).

The spelling of 153203045 in words is "one hundred fifty-three million, two hundred three thousand, forty-five".