30872101 has 8 divisors (see below), whose sum is σ = 33469184. Its totient is φ = 28306800.

The previous prime is 30872089. The next prime is 30872111. The reversal of 30872101 is 10127803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30872101 - 2⁵ = 30872069 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 (30872111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5901 + ... + 9826.

It is an arithmetic number, because the mean of its divisors is an integer number (4183648).

Almost surely, 2^30872101 is an apocalyptic number.

It is an amenable number.

30872101 is a deficient number, since it is larger than the sum of its proper divisors (2597083).

30872101 is a wasteful number, since it uses less digits than its factorization.

30872101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15891.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 30872101 is about 5556.2668222468. The cubic root of 30872101 is about 313.7054488257.

Adding to 30872101 its reverse (10127803), we get a palindrome (40999904).

The spelling of 30872101 in words is "thirty million, eight hundred seventy-two thousand, one hundred one".