145117441 has 8 divisors (see below), whose sum is σ = 170331200. Its totient is φ = 121024368.

The previous prime is 145117393. The next prime is 145117447. The reversal of 145117441 is 144711541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145117441 - 2¹¹ = 145115393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145117447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279891 + ... + 280408.

It is an arithmetic number, because the mean of its divisors is an integer number (21291400).

Almost surely, 2^145117441 is an apocalyptic number.

It is an amenable number.

145117441 is a deficient number, since it is larger than the sum of its proper divisors (25213759).

145117441 is an equidigital number, since it uses as much as digits as its factorization.

145117441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560343.

The product of its digits is 2240, while the sum is 28.

The square root of 145117441 is about 12046.4700638818. The cubic root of 145117441 is about 525.5005849768.

Adding to 145117441 its reverse (144711541), we get a palindrome (289828982).

It can be divided in two parts, 14511 and 7441, that added together give a cube (21952 = 28³).

The spelling of 145117441 in words is "one hundred forty-five million, one hundred seventeen thousand, four hundred forty-one".