161004526 has 8 divisors (see below), whose sum is σ = 242903304. Its totient is φ = 80036760.

The previous prime is 161004511. The next prime is 161004539. The reversal of 161004526 is 625400161.

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

It is a self number, because there is not a number n which added to its sum of digits gives 161004526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232320 + ... + 233011.

It is an arithmetic number, because the mean of its divisors is an integer number (30362913).

Almost surely, 2^161004526 is an apocalyptic number.

161004526 is a deficient number, since it is larger than the sum of its proper divisors (81898778).

161004526 is a wasteful number, since it uses less digits than its factorization.

161004526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465506.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 161004526 is about 12688.7558885810. The cubic root of 161004526 is about 544.0172802145.

Adding to 161004526 its reverse (625400161), we get a palindrome (786404687).

The spelling of 161004526 in words is "one hundred sixty-one million, four thousand, five hundred twenty-six".