30161061 has 12 divisors (see below), whose sum is σ = 49789792. Its totient is φ = 17234856.

The previous prime is 30161059. The next prime is 30161069. The reversal of 30161061 is 16016103.

It is not a de Polignac number, because 30161061 - 2¹ = 30161059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30161069) 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, 239311 + ... + 239436.

Almost surely, 2^30161061 is an apocalyptic number.

It is an amenable number.

30161061 is a deficient number, since it is larger than the sum of its proper divisors (19628731).

30161061 is a wasteful number, since it uses less digits than its factorization.

30161061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478760 (or 478757 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 30161061 is about 5491.9086846014. The cubic root of 30161061 is about 311.2783184183.

Adding to 30161061 its reverse (16016103), we get a palindrome (46177164).

The spelling of 30161061 in words is "thirty million, one hundred sixty-one thousand, sixty-one".