145240441 has 2 divisors, whose sum is σ = 145240442. Its totient is φ = 145240440.

The previous prime is 145240379. The next prime is 145240457. The reversal of 145240441 is 144042541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93702400 + 51538041 = 9680^2 + 7179^2 .

It is a cyclic number.

It is not a de Polignac number, because 145240441 - 2¹¹ = 145238393 is a prime.

It is not a weakly prime, because it can be changed into another prime (145240471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72620220 + 72620221.

It is an arithmetic number, because the mean of its divisors is an integer number (72620221).

Almost surely, 2^145240441 is an apocalyptic number.

It is an amenable number.

145240441 is a deficient number, since it is larger than the sum of its proper divisors (1).

145240441 is an equidigital number, since it uses as much as digits as its factorization.

145240441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 145240441 is about 12051.5742125251. The cubic root of 145240441 is about 525.6490126189.

Adding to 145240441 its reverse (144042541), we get a palindrome (289282982).

The spelling of 145240441 in words is "one hundred forty-five million, two hundred forty thousand, four hundred forty-one".