161074744 has 8 divisors (see below), whose sum is σ = 302015160. Its totient is φ = 80537368.

The previous prime is 161074741. The next prime is 161074769. The reversal of 161074744 is 447470161.

161074744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161074741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067164 + ... + 10067179.

It is an arithmetic number, because the mean of its divisors is an integer number (37751895).

Almost surely, 2^161074744 is an apocalyptic number.

It is an amenable number.

161074744 is a deficient number, since it is larger than the sum of its proper divisors (140940416).

161074744 is a wasteful number, since it uses less digits than its factorization.

161074744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20134349 (or 20134345 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 161074744 is about 12691.5225248983. The cubic root of 161074744 is about 544.0963551208.

The spelling of 161074744 in words is "one hundred sixty-one million, seventy-four thousand, seven hundred forty-four".