145111441 has 2 divisors, whose sum is σ = 145111442. Its totient is φ = 145111440.

The previous prime is 145111411. The next prime is 145111457. The reversal of 145111441 is 144111541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123988225 + 21123216 = 11135^2 + 4596^2 .

It is a cyclic number.

It is not a de Polignac number, because 145111441 - 2¹³ = 145103249 is a prime.

It is not a weakly prime, because it can be changed into another prime (145111411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72555720 + 72555721.

It is an arithmetic number, because the mean of its divisors is an integer number (72555721).

Almost surely, 2^145111441 is an apocalyptic number.

It is an amenable number.

145111441 is a deficient number, since it is larger than the sum of its proper divisors (1).

145111441 is an equidigital number, since it uses as much as digits as its factorization.

145111441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320, while the sum is 22.

The square root of 145111441 is about 12046.2210256993. The cubic root of 145111441 is about 525.4933424590.

Adding to 145111441 its reverse (144111541), we get a palindrome (289222982).

The spelling of 145111441 in words is "one hundred forty-five million, one hundred eleven thousand, four hundred forty-one".