145143241 has 4 divisors (see below), whose sum is σ = 147187584. Its totient is φ = 143098900.

The previous prime is 145143233. The next prime is 145143269. The reversal of 145143241 is 142341541.

145143241 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142341541 = 29 ⋅4908329.

It is a cyclic number.

It is not a de Polignac number, because 145143241 - 2³ = 145143233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145143211) 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, 1022065 + ... + 1022206.

It is an arithmetic number, because the mean of its divisors is an integer number (36796896).

Almost surely, 2^145143241 is an apocalyptic number.

It is an amenable number.

145143241 is a deficient number, since it is larger than the sum of its proper divisors (2044343).

145143241 is an equidigital number, since it uses as much as digits as its factorization.

145143241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044342.

The product of its digits is 1920, while the sum is 25.

The square root of 145143241 is about 12047.5408694057. The cubic root of 145143241 is about 525.5317255289.

Adding to 145143241 its reverse (142341541), we get a palindrome (287484782).

The spelling of 145143241 in words is "one hundred forty-five million, one hundred forty-three thousand, two hundred forty-one".