30139995 has 8 divisors (see below), whose sum is σ = 48224016. Its totient is φ = 16074656.

The previous prime is 30139981. The next prime is 30139999. The reversal of 30139995 is 59993103.

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 30139995 - 2¹² = 30135899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30139999) 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, 1004652 + ... + 1004681.

It is an arithmetic number, because the mean of its divisors is an integer number (6028002).

Almost surely, 2^30139995 is an apocalyptic number.

30139995 is a deficient number, since it is larger than the sum of its proper divisors (18084021).

30139995 is a wasteful number, since it uses less digits than its factorization.

30139995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009341.

The product of its (nonzero) digits is 32805, while the sum is 39.

The square root of 30139995 is about 5489.9904371501. The cubic root of 30139995 is about 311.2058307349.

The spelling of 30139995 in words is "thirty million, one hundred thirty-nine thousand, nine hundred ninety-five".