161041012 has 12 divisors (see below), whose sum is σ = 307442016. Its totient is φ = 73200440.

The previous prime is 161041003. The next prime is 161041021. The reversal of 161041012 is 210140161.

It is an interprime number because it is at equal distance from previous prime (161041003) and next prime (161041021).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829968 + ... + 1830055.

It is an arithmetic number, because the mean of its divisors is an integer number (25620168).

Almost surely, 2^161041012 is an apocalyptic number.

It is an amenable number.

161041012 is a deficient number, since it is larger than the sum of its proper divisors (146401004).

161041012 is a wasteful number, since it uses less digits than its factorization.

161041012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660038 (or 3660036 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 161041012 is about 12690.1935367432. The cubic root of 161041012 is about 544.0583712236.

Adding to 161041012 its reverse (210140161), we get a palindrome (371181173).

The spelling of 161041012 in words is "one hundred sixty-one million, forty-one thousand, twelve".