945783161 has 4 divisors (see below), whose sum is σ = 986904192. Its totient is φ = 904662132.

The previous prime is 945783149. The next prime is 945783173. The reversal of 945783161 is 161387549.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (945783149) and next prime (945783173).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-945783161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945723161) 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, 20560481 + ... + 20560526.

It is an arithmetic number, because the mean of its divisors is an integer number (246726048).

Almost surely, 2^945783161 is an apocalyptic number.

It is an amenable number.

945783161 is a deficient number, since it is larger than the sum of its proper divisors (41121031).

945783161 is a wasteful number, since it uses less digits than its factorization.

945783161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41121030.

The product of its digits is 181440, while the sum is 44.

The square root of 945783161 is about 30753.5877744370. The cubic root of 945783161 is about 981.5909051418.

The spelling of 945783161 in words is "nine hundred forty-five million, seven hundred eighty-three thousand, one hundred sixty-one".