145665246 has 8 divisors (see below), whose sum is σ = 291330504. Its totient is φ = 48555080.

The previous prime is 145665227. The next prime is 145665257. The reversal of 145665246 is 642566541.

It is a sphenic number, since it is the product of 3 distinct primes.

145665246 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12138765 + ... + 12138776.

It is an arithmetic number, because the mean of its divisors is an integer number (36416313).

Almost surely, 2^145665246 is an apocalyptic number.

145665246 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145665246 is a wasteful number, since it uses less digits than its factorization.

145665246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24277546.

The product of its digits is 172800, while the sum is 39.

The square root of 145665246 is about 12069.1858051817. The cubic root of 145665246 is about 526.1609934795.

The spelling of 145665246 in words is "one hundred forty-five million, six hundred sixty-five thousand, two hundred forty-six".