145322040231 has 12 divisors (see below), whose sum is σ = 209917539000. Its totient is φ = 96877702320.

The previous prime is 145322040221. The next prime is 145322040301. The reversal of 145322040231 is 132040223541.

145322040231 is a `hidden beast` number, since 1 + 4 + 5 + 3 + 220 + 402 + 31 = 666.

It is not a de Polignac number, because 145322040231 - 2⁷ = 145322040103 is a prime.

It is a super-2 number, since 2×145322040231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145322040195 and 145322040204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145322040221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41205 + ... + 540686.

It is an arithmetic number, because the mean of its divisors is an integer number (17493128250).

Almost surely, 2^145322040231 is an apocalyptic number.

145322040231 is a deficient number, since it is larger than the sum of its proper divisors (64595498769).

145322040231 is a wasteful number, since it uses less digits than its factorization.

145322040231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609646 (or 609643 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 145322040231 its reverse (132040223541), we get a palindrome (277362263772).

The spelling of 145322040231 in words is "one hundred forty-five billion, three hundred twenty-two million, forty thousand, two hundred thirty-one".