745346161 has 4 divisors (see below), whose sum is σ = 851824192. Its totient is φ = 638868132.

The previous prime is 745346149. The next prime is 745346177. The reversal of 745346161 is 161643547.

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 a de Polignac number, because none of the positive numbers 2^k-745346161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745346161.

It is not an unprimeable number, because it can be changed into a prime (745346191) 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, 53239005 + ... + 53239018.

It is an arithmetic number, because the mean of its divisors is an integer number (212956048).

Almost surely, 2^745346161 is an apocalyptic number.

It is an amenable number.

745346161 is a deficient number, since it is larger than the sum of its proper divisors (106478031).

745346161 is a wasteful number, since it uses less digits than its factorization.

745346161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106478030.

The product of its digits is 60480, while the sum is 37.

The square root of 745346161 is about 27301.0285703671. The cubic root of 745346161 is about 906.6771545037.

The spelling of 745346161 in words is "seven hundred forty-five million, three hundred forty-six thousand, one hundred sixty-one".