30139593 has 8 divisors (see below), whose sum is σ = 43839456. Its totient is φ = 18266400.

The previous prime is 30139559. The next prime is 30139597. The reversal of 30139593 is 39593103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30139593 - 2⁸ = 30139337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 913321 = 30139593 / (3 + 0 + 1 + 3 + 9 + 5 + 9 + 3).

It is not an unprimeable number, because it can be changed into a prime (30139597) 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, 456628 + ... + 456693.

It is an arithmetic number, because the mean of its divisors is an integer number (5479932).

Almost surely, 2^30139593 is an apocalyptic number.

30139593 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30139593 is a deficient number, since it is larger than the sum of its proper divisors (13699863).

30139593 is a wasteful number, since it uses less digits than its factorization.

30139593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913335.

The product of its (nonzero) digits is 10935, while the sum is 33.

The square root of 30139593 is about 5489.9538249424. The cubic root of 30139593 is about 311.2044471326.

The spelling of 30139593 in words is "thirty million, one hundred thirty-nine thousand, five hundred ninety-three".