145200245231 has 4 divisors (see below), whose sum is σ = 145888398264. Its totient is φ = 144512092200.

The previous prime is 145200245209. The next prime is 145200245233. The reversal of 145200245231 is 132542002541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132542002541 = 13 ⋅10195538657.

It is a cyclic number.

It is not a de Polignac number, because 145200245231 - 2⁶ = 145200245167 is a prime.

It is a super-2 number, since 2×145200245231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145200245194 and 145200245203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145200245233) 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, 344076200 + ... + 344076621.

It is an arithmetic number, because the mean of its divisors is an integer number (36472099566).

Almost surely, 2^145200245231 is an apocalyptic number.

145200245231 is a deficient number, since it is larger than the sum of its proper divisors (688153033).

145200245231 is an equidigital number, since it uses as much as digits as its factorization.

145200245231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688153032.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 145200245231 its reverse (132542002541), we get a palindrome (277742247772).

The spelling of 145200245231 in words is "one hundred forty-five billion, two hundred million, two hundred forty-five thousand, two hundred thirty-one".