161040146 has 8 divisors (see below), whose sum is σ = 245654640. Its totient is φ = 79155268.

The previous prime is 161040127. The next prime is 161040149. The reversal of 161040146 is 641040161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (161040149) 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, 682256 + ... + 682491.

It is an arithmetic number, because the mean of its divisors is an integer number (30706830).

Almost surely, 2^161040146 is an apocalyptic number.

161040146 is a deficient number, since it is larger than the sum of its proper divisors (84614494).

161040146 is a wasteful number, since it uses less digits than its factorization.

161040146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364808.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 161040146 is about 12690.1594158624. The cubic root of 161040146 is about 544.0573959950.

The spelling of 161040146 in words is "one hundred sixty-one million, forty thousand, one hundred forty-six".