161461244 has 12 divisors (see below), whose sum is σ = 322922544. Its totient is φ = 69197664.

The previous prime is 161461211. The next prime is 161461301. The reversal of 161461244 is 442164161.

161461244 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2883209 + ... + 2883264.

It is an arithmetic number, because the mean of its divisors is an integer number (26910212).

Almost surely, 2^161461244 is an apocalyptic number.

161461244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161461244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161461244 is a wasteful number, since it uses less digits than its factorization.

161461244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5766484 (or 5766482 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 161461244 is about 12706.7401012219. The cubic root of 161461244 is about 544.5311952037.

The spelling of 161461244 in words is "one hundred sixty-one million, four hundred sixty-one thousand, two hundred forty-four".