30139196 has 6 divisors (see below), whose sum is σ = 52743600. Its totient is φ = 15069596.

The previous prime is 30139171. The next prime is 30139199. The reversal of 30139196 is 69193103.

It is a super-2 number, since 2×30139196² = 1816742271052832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30139199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3767396 + ... + 3767403.

It is an arithmetic number, because the mean of its divisors is an integer number (8790600).

Almost surely, 2^30139196 is an apocalyptic number.

It is an amenable number.

30139196 is a deficient number, since it is larger than the sum of its proper divisors (22604404).

30139196 is a wasteful number, since it uses less digits than its factorization.

30139196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7534803 (or 7534801 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 30139196 is about 5489.9176678708. The cubic root of 30139196 is about 311.2030807272.

The spelling of 30139196 in words is "thirty million, one hundred thirty-nine thousand, one hundred ninety-six".