145544111 has 2 divisors, whose sum is σ = 145544112. Its totient is φ = 145544110.

The previous prime is 145544099. The next prime is 145544129. The reversal of 145544111 is 111445541.

It is a weak prime.

It is an emirp because it is prime and its reverse (111445541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145544111 - 2¹⁰ = 145543087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145544611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72772055 + 72772056.

It is an arithmetic number, because the mean of its divisors is an integer number (72772056).

Almost surely, 2^145544111 is an apocalyptic number.

145544111 is a deficient number, since it is larger than the sum of its proper divisors (1).

145544111 is an equidigital number, since it uses as much as digits as its factorization.

145544111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1600, while the sum is 26.

The square root of 145544111 is about 12064.1664030301. The cubic root of 145544111 is about 526.0151014666.

Adding to 145544111 its reverse (111445541), we get a palindrome (256989652).

The spelling of 145544111 in words is "one hundred forty-five million, five hundred forty-four thousand, one hundred eleven".