145020300233 has 4 divisors (see below), whose sum is σ = 145333519488. Its totient is φ = 144707080980.

The previous prime is 145020300199. The next prime is 145020300323. The reversal of 145020300233 is 332003020541.

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, and also an emirpimes, since its reverse is a distinct semiprime: 332003020541 = 211 ⋅1573474031.

It is a cyclic number.

It is not a de Polignac number, because 145020300233 - 2¹⁰ = 145020299209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145020300199 and 145020300208.

It is not an unprimeable number, because it can be changed into a prime (145020300133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156608933 + ... + 156609858.

It is an arithmetic number, because the mean of its divisors is an integer number (36333379872).

Almost surely, 2^145020300233 is an apocalyptic number.

It is an amenable number.

145020300233 is a deficient number, since it is larger than the sum of its proper divisors (313219255).

145020300233 is an equidigital number, since it uses as much as digits as its factorization.

145020300233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313219254.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 145020300233 its reverse (332003020541), we get a palindrome (477023320774).

The spelling of 145020300233 in words is "one hundred forty-five billion, twenty million, three hundred thousand, two hundred thirty-three".