145251 has 6 divisors (see below), whose sum is σ = 209820. Its totient is φ = 96828.

The previous prime is 145219. The next prime is 145253. The reversal of 145251 is 152541.

It is not a de Polignac number, because 145251 - 2⁵ = 145219 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145251.

It is not an unprimeable number, because it can be changed into a prime (145253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8061 + ... + 8078.

It is an arithmetic number, because the mean of its divisors is an integer number (34970).

2¹⁴⁵²⁵¹ is an apocalyptic number.

145251 is a deficient number, since it is larger than the sum of its proper divisors (64569).

145251 is a wasteful number, since it uses less digits than its factorization.

145251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16145 (or 16142 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 145251 is about 381.1180919348. The cubic root of 145251 is about 52.5661750562.

Adding to 145251 its reverse (152541), we get a palindrome (297792).

The spelling of 145251 in words is "one hundred forty-five thousand, two hundred fifty-one".