30140353 has 4 divisors (see below), whose sum is σ = 30416980. Its totient is φ = 29863728.

The previous prime is 30140347. The next prime is 30140381. The reversal of 30140353 is 35304103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35304103 = 23 ⋅1534961.

It can be written as a sum of positive squares in 2 ways, for example, as 23107249 + 7033104 = 4807^2 + 2652^2 .

It is a cyclic number.

It is not a de Polignac number, because 30140353 - 2⁵ = 30140321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30140353.

It is not an unprimeable number, because it can be changed into a prime (30140323) 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, 138150 + ... + 138367.

It is an arithmetic number, because the mean of its divisors is an integer number (7604245).

Almost surely, 2^30140353 is an apocalyptic number.

It is an amenable number.

30140353 is a deficient number, since it is larger than the sum of its proper divisors (276627).

30140353 is a wasteful number, since it uses less digits than its factorization.

30140353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276626.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 30140353 is about 5490.0230418460. The cubic root of 30140353 is about 311.2070628878.

Adding to 30140353 its reverse (35304103), we get a palindrome (65444456).

The spelling of 30140353 in words is "thirty million, one hundred forty thousand, three hundred fifty-three".