145111147 has 4 divisors (see below), whose sum is σ = 145137960. Its totient is φ = 145084336.

The previous prime is 145111129. The next prime is 145111171. The reversal of 145111147 is 741111541.

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

It is a cyclic number.

It is not a de Polignac number, because 145111147 - 2¹⁵ = 145078379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145111247) 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 in 3 ways as a sum of consecutive naturals, for example, 2122 + ... + 17167.

It is an arithmetic number, because the mean of its divisors is an integer number (36284490).

Almost surely, 2^145111147 is an apocalyptic number.

145111147 is a deficient number, since it is larger than the sum of its proper divisors (26813).

145111147 is an equidigital number, since it uses as much as digits as its factorization.

145111147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26812.

The product of its digits is 560, while the sum is 25.

The square root of 145111147 is about 12046.2088226960. The cubic root of 145111147 is about 525.4929875704.

Adding to 145111147 its reverse (741111541), we get a palindrome (886222688).

The spelling of 145111147 in words is "one hundred forty-five million, one hundred eleven thousand, one hundred forty-seven".