161149734 has 24 divisors (see below), whose sum is σ = 349519872. Its totient is φ = 53660880.

The previous prime is 161149679. The next prime is 161149741. The reversal of 161149734 is 437941161.

161149734 is a `hidden beast` number, since 1 + 611 + 4 + 9 + 7 + 34 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15579 + ... + 23769.

It is an arithmetic number, because the mean of its divisors is an integer number (14563328).

Almost surely, 2^161149734 is an apocalyptic number.

161149734 is an abundant number, since it is smaller than the sum of its proper divisors (188370138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161149734 is a wasteful number, since it uses less digits than its factorization.

161149734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292 (or 9289 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 161149734 is about 12694.4765153983. The cubic root of 161149734 is about 544.1807785680.

The spelling of 161149734 in words is "one hundred sixty-one million, one hundred forty-nine thousand, seven hundred thirty-four".