30187101 has 8 divisors (see below), whose sum is σ = 45999424. Its totient is φ = 17249760.

The previous prime is 30187099. The next prime is 30187117. The reversal of 30187101 is 10178103.

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

It is not a de Polignac number, because 30187101 - 2¹ = 30187099 is a prime.

It is a super-2 number, since 2×30187101² = 1822522133568402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1437481 = 30187101 / (3 + 0 + 1 + 8 + 7 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30187151) 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, 718720 + ... + 718761.

It is an arithmetic number, because the mean of its divisors is an integer number (5749928).

Almost surely, 2^30187101 is an apocalyptic number.

It is an amenable number.

30187101 is a deficient number, since it is larger than the sum of its proper divisors (15812323).

30187101 is a wasteful number, since it uses less digits than its factorization.

30187101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437491.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 30187101 is about 5494.2789335817. The cubic root of 30187101 is about 311.3678749031.

The spelling of 30187101 in words is "thirty million, one hundred eighty-seven thousand, one hundred one".