145125111 has 4 divisors (see below), whose sum is σ = 193500152. Its totient is φ = 96750072.

The previous prime is 145125103. The next prime is 145125151. The reversal of 145125111 is 111521541.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 145125111 - 2³ = 145125103 is a prime.

It is a super-2 number, since 2×145125111² = 42122595685524642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145125151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24187516 + ... + 24187521.

It is an arithmetic number, because the mean of its divisors is an integer number (48375038).

Almost surely, 2^145125111 is an apocalyptic number.

145125111 is a deficient number, since it is larger than the sum of its proper divisors (48375041).

145125111 is an equidigital number, since it uses as much as digits as its factorization.

145125111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48375040.

The product of its digits is 200, while the sum is 21.

The square root of 145125111 is about 12046.7884101946. The cubic root of 145125111 is about 525.5098430381.

Adding to 145125111 its reverse (111521541), we get a palindrome (256646652).

It can be divided in two parts, 1451 and 25111, that added together give a palindrome (26562).

The spelling of 145125111 in words is "one hundred forty-five million, one hundred twenty-five thousand, one hundred eleven".