161063525 has 24 divisors (see below), whose sum is σ = 241680960. Its totient is φ = 103944960.

The previous prime is 161063521. The next prime is 161063527. The reversal of 161063525 is 525360161.

It is not a de Polignac number, because 161063525 - 2² = 161063521 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161063521) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 24095 + ... + 30044.

It is an arithmetic number, because the mean of its divisors is an integer number (10070040).

Almost surely, 2^161063525 is an apocalyptic number.

It is an amenable number.

161063525 is a deficient number, since it is larger than the sum of its proper divisors (80617435).

161063525 is a wasteful number, since it uses less digits than its factorization.

161063525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54173 (or 54168 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 161063525 is about 12691.0805292536. The cubic root of 161063525 is about 544.0837225616.

The spelling of 161063525 in words is "one hundred sixty-one million, sixty-three thousand, five hundred twenty-five".