145145143 has 24 divisors (see below), whose sum is σ = 172869120. Its totient is φ = 120800160.

The previous prime is 145145141. The next prime is 145145153. The reversal of 145145143 is 341541541.

It is not a de Polignac number, because 145145143 - 2¹ = 145145141 is a prime.

It is a super-2 number, since 2×145145143² = 42134225072980898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145145141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302778 + ... + 303256.

It is an arithmetic number, because the mean of its divisors is an integer number (7202880).

Almost surely, 2^145145143 is an apocalyptic number.

145145143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145145143 is a deficient number, since it is larger than the sum of its proper divisors (27723977).

145145143 is a wasteful number, since it uses less digits than its factorization.

145145143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 666 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 145145143 is about 12047.6198064182. The cubic root of 145145143 is about 525.5340210933.

Adding to 145145143 its reverse (341541541), we get a palindrome (486686684).

The spelling of 145145143 in words is "one hundred forty-five million, one hundred forty-five thousand, one hundred forty-three".