145520241 has 16 divisors (see below), whose sum is σ = 202766976. Its totient is φ = 92656256.

The previous prime is 145520239. The next prime is 145520257. The reversal of 145520241 is 142025541.

145520241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 145520241 - 2¹ = 145520239 is a prime.

It is a super-2 number, since 2×145520241² = 42352281081396162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145520201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64651 + ... + 66863.

It is an arithmetic number, because the mean of its divisors is an integer number (12672936).

Almost surely, 2^145520241 is an apocalyptic number.

It is an amenable number.

145520241 is a deficient number, since it is larger than the sum of its proper divisors (57246735).

145520241 is a wasteful number, since it uses less digits than its factorization.

145520241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145520241 is about 12063.1770690809. The cubic root of 145520241 is about 525.9863434796.

Adding to 145520241 its reverse (142025541), we get a palindrome (287545782).

It can be divided in two parts, 14 and 5520241, that added together give a palindrome (5520255).

The spelling of 145520241 in words is "one hundred forty-five million, five hundred twenty thousand, two hundred forty-one".