145683369 has 24 divisors (see below), whose sum is σ = 228038720. Its totient is φ = 89089632.

The previous prime is 145683359. The next prime is 145683371. The reversal of 145683369 is 963386541.

It is not a de Polignac number, because 145683369 - 2⁵ = 145683337 is a prime.

It is a super-2 number, since 2×145683369² = 42447288006380322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145683359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15252 + ... + 22890.

Almost surely, 2^145683369 is an apocalyptic number.

It is an amenable number.

145683369 is a deficient number, since it is larger than the sum of its proper divisors (82355351).

145683369 is a wasteful number, since it uses less digits than its factorization.

145683369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7821 (or 7818 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 145683369 is about 12069.9365781267. The cubic root of 145683369 is about 526.1828134183.

The spelling of 145683369 in words is "one hundred forty-five million, six hundred eighty-three thousand, three hundred sixty-nine".