145146 has 16 divisors (see below), whose sum is σ = 307584. Its totient is φ = 45504.

The previous prime is 145139. The next prime is 145177. The reversal of 145146 is 641541.

145146 is nontrivially palindromic in base 12.

It is a super-2 number, since 2×145146² = 42134722632, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145146.

It is an unprimeable number.

145146 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610 + ... + 813.

It is an arithmetic number, because the mean of its divisors is an integer number (19224).

2¹⁴⁵¹⁴⁶ is an apocalyptic number.

145146 is the 204-th nonagonal number.

145146 is an abundant number, since it is smaller than the sum of its proper divisors (162438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145146 is a wasteful number, since it uses less digits than its factorization.

145146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445.

The product of its digits is 480, while the sum is 21.

The square root of 145146 is about 380.9803144521. The cubic root of 145146 is about 52.5535055418.

Adding to 145146 its reverse (641541), we get a palindrome (786687).

The spelling of 145146 in words is "one hundred forty-five thousand, one hundred forty-six".