145511 has 2 divisors, whose sum is σ = 145512. Its totient is φ = 145510.

The previous prime is 145501. The next prime is 145513. The reversal of 145511 is 115541.

145511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145511 - 2¹⁴ = 129127 is a prime.

It is a super-2 number, since 2×145511² = 42346902242, which contains 22 as substring.

Together with 145513, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72755 + 72756.

It is an arithmetic number, because the mean of its divisors is an integer number (72756).

2¹⁴⁵⁵¹¹ is an apocalyptic number.

145511 is a deficient number, since it is larger than the sum of its proper divisors (1).

145511 is an equidigital number, since it uses as much as digits as its factorization.

145511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100, while the sum is 17.

The square root of 145511 is about 381.4590410516. The cubic root of 145511 is about 52.5975209306.

It can be divided in two parts, 145 and 511, that added together give a palindrome (656).

The spelling of 145511 in words is "one hundred forty-five thousand, five hundred eleven".