30000476139 has 4 divisors (see below), whose sum is σ = 40000634856. Its totient is φ = 20000317424.

The previous prime is 30000476131. The next prime is 30000476159. The reversal of 30000476139 is 93167400003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30000476139 - 2³ = 30000476131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30000476131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000079354 + ... + 5000079359.

It is an arithmetic number, because the mean of its divisors is an integer number (10000158714).

Almost surely, 2^30000476139 is an apocalyptic number.

30000476139 is a deficient number, since it is larger than the sum of its proper divisors (10000158717).

30000476139 is a wasteful number, since it uses less digits than its factorization.

30000476139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000158716.

The product of its (nonzero) digits is 13608, while the sum is 33.

The spelling of 30000476139 in words is "thirty billion, four hundred seventy-six thousand, one hundred thirty-nine".