145015432331 has 40 divisors (see below), whose sum is σ = 192579012864. Its totient is φ = 108085583760.

The previous prime is 145015432313. The next prime is 145015432337. The reversal of 145015432331 is 133234510541.

145015432331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145015432331 - 2¹⁰ = 145015431307 is a prime.

It is a super-2 number, since 2×145015432331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145015432337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 488090 + ... + 726816.

Almost surely, 2^145015432331 is an apocalyptic number.

145015432331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145015432331 is a deficient number, since it is larger than the sum of its proper divisors (47563580533).

145015432331 is an equidigital number, since it uses as much as digits as its factorization.

145015432331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238789 (or 238768 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 145015432331 its reverse (133234510541), we get a palindrome (278249942872).

The spelling of 145015432331 in words is "one hundred forty-five billion, fifteen million, four hundred thirty-two thousand, three hundred thirty-one".