145312443 has 6 divisors (see below), whose sum is σ = 209895764. Its totient is φ = 96874956.

The previous prime is 145312439. The next prime is 145312451. The reversal of 145312443 is 344213541.

It is a happy number.

145312443 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 145312443 - 2² = 145312439 is a prime.

It is a super-2 number, since 2×145312443² = 42231412181256498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145312423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8072905 + ... + 8072922.

Almost surely, 2^145312443 is an apocalyptic number.

145312443 is a deficient number, since it is larger than the sum of its proper divisors (64583321).

145312443 is a wasteful number, since it uses less digits than its factorization.

145312443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16145833 (or 16145830 counting only the distinct ones).

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

The square root of 145312443 is about 12054.5610869911. The cubic root of 145312443 is about 525.7358606240.

Adding to 145312443 its reverse (344213541), we get a palindrome (489525984).

The spelling of 145312443 in words is "one hundred forty-five million, three hundred twelve thousand, four hundred forty-three".