161245546 has 32 divisors (see below), whose sum is σ = 302216832. Its totient is φ = 62684160.

The previous prime is 161245531. The next prime is 161245547. The reversal of 161245546 is 645542161.

161245546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161245546² = 52000252209676232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161245547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94170 + ... + 95866.

It is an arithmetic number, because the mean of its divisors is an integer number (9444276).

Almost surely, 2^161245546 is an apocalyptic number.

161245546 is a deficient number, since it is larger than the sum of its proper divisors (140971286).

161245546 is a wasteful number, since it uses less digits than its factorization.

161245546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334.

The product of its digits is 28800, while the sum is 34.

The square root of 161245546 is about 12698.2497219105. The cubic root of 161245546 is about 544.2886052410.

The spelling of 161245546 in words is "one hundred sixty-one million, two hundred forty-five thousand, five hundred forty-six".