161145303 has 8 divisors (see below), whose sum is σ = 234393216. Its totient is φ = 97663800.

The previous prime is 161145301. The next prime is 161145307. The reversal of 161145303 is 303541161.

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

It is not a de Polignac number, because 161145303 - 2¹ = 161145301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161145301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2441563 + ... + 2441628.

It is an arithmetic number, because the mean of its divisors is an integer number (29299152).

Almost surely, 2^161145303 is an apocalyptic number.

161145303 is a deficient number, since it is larger than the sum of its proper divisors (73247913).

161145303 is a wasteful number, since it uses less digits than its factorization.

161145303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883205.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 161145303 is about 12694.3019894754. The cubic root of 161145303 is about 544.1757908937.

Adding to 161145303 its reverse (303541161), we get a palindrome (464686464).

The spelling of 161145303 in words is "one hundred sixty-one million, one hundred forty-five thousand, three hundred three".