30100161 has 48 divisors (see below), whose sum is σ = 52987200. Its totient is φ = 15023232.

The previous prime is 30100159. The next prime is 30100181. The reversal of 30100161 is 16100103.

It is not a de Polignac number, because 30100161 - 2¹ = 30100159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30100111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35895 + ... + 36723.

It is an arithmetic number, because the mean of its divisors is an integer number (1103900).

Almost surely, 2^30100161 is an apocalyptic number.

It is an amenable number.

30100161 is a deficient number, since it is larger than the sum of its proper divisors (22887039).

30100161 is a wasteful number, since it uses less digits than its factorization.

30100161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 30100161 is about 5486.3613625061. The cubic root of 30100161 is about 311.0686703680.

Adding to 30100161 its reverse (16100103), we get a palindrome (46200264).

The spelling of 30100161 in words is "thirty million, one hundred thousand, one hundred sixty-one".