145335143 has 4 divisors (see below), whose sum is σ = 145489560. Its totient is φ = 145180728.

The previous prime is 145335133. The next prime is 145335173. The reversal of 145335143 is 341533541.

145335143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341533541 = 31 ⋅11017211.

It is a cyclic number.

It is not a de Polignac number, because 145335143 - 2¹² = 145331047 is a prime.

It is a super-2 number, since 2×145335143² = 42244607581660898, 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 (145335133) 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, 75788 + ... + 77681.

It is an arithmetic number, because the mean of its divisors is an integer number (36372390).

Almost surely, 2^145335143 is an apocalyptic number.

145335143 is a deficient number, since it is larger than the sum of its proper divisors (154417).

145335143 is an equidigital number, since it uses as much as digits as its factorization.

145335143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154416.

The product of its digits is 10800, while the sum is 29.

The square root of 145335143 is about 12055.5026025463. The cubic root of 145335143 is about 525.7632351612.

Adding to 145335143 its reverse (341533541), we get a palindrome (486868684).

The spelling of 145335143 in words is "one hundred forty-five million, three hundred thirty-five thousand, one hundred forty-three".