161103129 has 16 divisors (see below), whose sum is σ = 236752320. Its totient is φ = 96629760.

The previous prime is 161103113. The next prime is 161103133. The reversal of 161103129 is 921301161.

161103129 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 161103129 - 2⁴ = 161103113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161103099 and 161103108.

It is not an unprimeable number, because it can be changed into a prime (161103179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21964 + ... + 28365.

It is an arithmetic number, because the mean of its divisors is an integer number (14797020).

Almost surely, 2^161103129 is an apocalyptic number.

It is an amenable number.

161103129 is a deficient number, since it is larger than the sum of its proper divisors (75649191).

161103129 is a wasteful number, since it uses less digits than its factorization.

161103129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50440.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 161103129 is about 12692.6407417842. The cubic root of 161103129 is about 544.1283139236.

The spelling of 161103129 in words is "one hundred sixty-one million, one hundred three thousand, one hundred twenty-nine".