145903165 has 8 divisors (see below), whose sum is σ = 178051680. Its totient is φ = 114743952.

The previous prime is 145903151. The next prime is 145903187. The reversal of 145903165 is 561309541.

145903165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 145903165 - 2¹⁵ = 145870397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145903165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246999 + ... + 247588.

It is an arithmetic number, because the mean of its divisors is an integer number (22256460).

Almost surely, 2^145903165 is an apocalyptic number.

It is an amenable number.

145903165 is a deficient number, since it is larger than the sum of its proper divisors (32148515).

145903165 is an equidigital number, since it uses as much as digits as its factorization.

145903165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494651.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 145903165 is about 12079.0382481388. The cubic root of 145903165 is about 526.4473020015.

The spelling of 145903165 in words is "one hundred forty-five million, nine hundred three thousand, one hundred sixty-five".