30101140 has 24 divisors (see below), whose sum is σ = 63417312. Its totient is φ = 12001440.

The previous prime is 30101107. The next prime is 30101147. The reversal of 30101140 is 4110103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30101147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4347 + ... + 8893.

It is an arithmetic number, because the mean of its divisors is an integer number (2642388).

Almost surely, 2^30101140 is an apocalyptic number.

It is an amenable number.

30101140 is an abundant number, since it is smaller than the sum of its proper divisors (33316172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30101140 is a wasteful number, since it uses less digits than its factorization.

30101140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887 (or 4885 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 30101140 is about 5486.4505830272. The cubic root of 30101140 is about 311.0720428077.

Adding to 30101140 its reverse (4110103), we get a palindrome (34211243).

The spelling of 30101140 in words is "thirty million, one hundred one thousand, one hundred forty".