230145553 has 4 divisors (see below), whose sum is σ = 251067888. Its totient is φ = 209223220.

The previous prime is 230145523. The next prime is 230145583. The reversal of 230145553 is 355541032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (230145523) and next prime (230145583).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230145553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230145523) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10461151 + ... + 10461172.

It is an arithmetic number, because the mean of its divisors is an integer number (62766972).

Almost surely, 2^230145553 is an apocalyptic number.

It is an amenable number.

230145553 is a deficient number, since it is larger than the sum of its proper divisors (20922335).

230145553 is a wasteful number, since it uses less digits than its factorization.

230145553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20922334.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 230145553 is about 15170.5488694378. The cubic root of 230145553 is about 612.8217855458.

Adding to 230145553 its reverse (355541032), we get a palindrome (585686585).

The spelling of 230145553 in words is "two hundred thirty million, one hundred forty-five thousand, five hundred fifty-three".