145344241 has 24 divisors (see below), whose sum is σ = 173106720. Its totient is φ = 121649472.

The previous prime is 145344223. The next prime is 145344253. The reversal of 145344241 is 142443541.

145344241 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 145344241 - 2¹³ = 145336049 is a prime.

It is a super-2 number, since 2×145344241² = 42249896783732162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145344211) 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, 640170 + ... + 640396.

It is an arithmetic number, because the mean of its divisors is an integer number (7212780).

Almost surely, 2^145344241 is an apocalyptic number.

It is an amenable number.

145344241 is a deficient number, since it is larger than the sum of its proper divisors (27762479).

145344241 is a wasteful number, since it uses less digits than its factorization.

145344241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 486 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 145344241 is about 12055.8799347041. The cubic root of 145344241 is about 525.7742058826.

Adding to 145344241 its reverse (142443541), we get a palindrome (287787782).

The spelling of 145344241 in words is "one hundred forty-five million, three hundred forty-four thousand, two hundred forty-one".