161041628 has 12 divisors (see below), whose sum is σ = 307443192. Its totient is φ = 73200720.

The previous prime is 161041627. The next prime is 161041667. The reversal of 161041628 is 826140161.

161041628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 161041628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161041627) 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, 1829975 + ... + 1830062.

It is an arithmetic number, because the mean of its divisors is an integer number (25620266).

Almost surely, 2^161041628 is an apocalyptic number.

It is an amenable number.

161041628 is a deficient number, since it is larger than the sum of its proper divisors (146401564).

161041628 is a wasteful number, since it uses less digits than its factorization.

161041628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660052 (or 3660050 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 161041628 is about 12690.2178074295. The cubic root of 161041628 is about 544.0590649175.

Adding to 161041628 its reverse (826140161), we get a palindrome (987181789).

The spelling of 161041628 in words is "one hundred sixty-one million, forty-one thousand, six hundred twenty-eight".