161961046 has 16 divisors (see below), whose sum is σ = 261936864. Its totient is φ = 74663424.

The previous prime is 161960999. The next prime is 161961053. The reversal of 161961046 is 640169161.

It is a happy number.

161961046 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22390 + ... + 28726.

It is an arithmetic number, because the mean of its divisors is an integer number (16371054).

Almost surely, 2^161961046 is an apocalyptic number.

161961046 is a deficient number, since it is larger than the sum of its proper divisors (99975818).

161961046 is a wasteful number, since it uses less digits than its factorization.

161961046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7335.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 161961046 is about 12726.3917117147. The cubic root of 161961046 is about 545.0924804485.

The spelling of 161961046 in words is "one hundred sixty-one million, nine hundred sixty-one thousand, forty-six".