145665344 has 28 divisors (see below), whose sum is σ = 315333888. Its totient is φ = 66211200.

The previous prime is 145665341. The next prime is 145665353. The reversal of 145665344 is 443566541.

It is a junction number, because it is equal to n+sod(n) for n = 145665298 and 145665307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145665341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102752 + ... + 104159.

Almost surely, 2^145665344 is an apocalyptic number.

It is an amenable number.

145665344 is an abundant number, since it is smaller than the sum of its proper divisors (169668544).

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

145665344 is a wasteful number, since it uses less digits than its factorization.

145665344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206934 (or 206924 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 145665344 is about 12069.1898651069. The cubic root of 145665344 is about 526.1611114755.

The spelling of 145665344 in words is "one hundred forty-five million, six hundred sixty-five thousand, three hundred forty-four".