30139101 has 16 divisors (see below), whose sum is σ = 44760000. Its totient is φ = 20043504.

The previous prime is 30139097. The next prime is 30139103. The reversal of 30139101 is 10193103.

It is not a de Polignac number, because 30139101 - 2² = 30139097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30139103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12355 + ... + 14591.

It is an arithmetic number, because the mean of its divisors is an integer number (2797500).

Almost surely, 2^30139101 is an apocalyptic number.

It is an amenable number.

30139101 is a deficient number, since it is larger than the sum of its proper divisors (14620899).

30139101 is a wasteful number, since it uses less digits than its factorization.

30139101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745 (or 2739 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 30139101 is about 5489.9090156395. The cubic root of 30139101 is about 311.2027537518.

The spelling of 30139101 in words is "thirty million, one hundred thirty-nine thousand, one hundred one".