145255111 has 2 divisors, whose sum is σ = 145255112. Its totient is φ = 145255110.

The previous prime is 145255093. The next prime is 145255147. The reversal of 145255111 is 111552541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145255111 - 2⁵ = 145255079 is a prime.

It is a super-3 number, since 3×145255111³ (a number of 25 digits) contains 333 as substring.

It is equal to p_8192113 and since 145255111 and 8192113 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145255151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72627555 + 72627556.

It is an arithmetic number, because the mean of its divisors is an integer number (72627556).

Almost surely, 2^145255111 is an apocalyptic number.

145255111 is a deficient number, since it is larger than the sum of its proper divisors (1).

145255111 is an equidigital number, since it uses as much as digits as its factorization.

145255111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1000, while the sum is 25.

The square root of 145255111 is about 12052.1828313381. The cubic root of 145255111 is about 525.6667097363. Note that the first 3 decimals are identical.

The spelling of 145255111 in words is "one hundred forty-five million, two hundred fifty-five thousand, one hundred eleven".