161545041 has 12 divisors (see below), whose sum is σ = 266677632. Its totient is φ = 92311416.

The previous prime is 161545037. The next prime is 161545081. The reversal of 161545041 is 140545161.

161545041 is a `hidden beast` number, since 1 + 6 + 154 + 504 + 1 = 666.

161545041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161545041 - 2² = 161545037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161544996 and 161545014.

It is not an unprimeable number, because it can be changed into a prime (161545001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1282041 + ... + 1282166.

It is an arithmetic number, because the mean of its divisors is an integer number (22223136).

Almost surely, 2^161545041 is an apocalyptic number.

It is an amenable number.

161545041 is a deficient number, since it is larger than the sum of its proper divisors (105132591).

161545041 is a wasteful number, since it uses less digits than its factorization.

161545041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564220 (or 2564217 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 161545041 is about 12710.0370180421. The cubic root of 161545041 is about 544.6253812507.

It can be divided in two parts, 1615 and 45041, that added together give a 6-th power (46656 = 6⁶).

The spelling of 161545041 in words is "one hundred sixty-one million, five hundred forty-five thousand, forty-one".