30140453 has 8 divisors (see below), whose sum is σ = 35286720. Its totient is φ = 25204320.

The previous prime is 30140449. The next prime is 30140477. The reversal of 30140453 is 35404103.

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 30140453 - 2² = 30140449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52223 + ... + 52796.

It is an arithmetic number, because the mean of its divisors is an integer number (4410840).

Almost surely, 2^30140453 is an apocalyptic number.

It is an amenable number.

30140453 is a deficient number, since it is larger than the sum of its proper divisors (5146267).

30140453 is a wasteful number, since it uses less digits than its factorization.

30140453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105067.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30140453 is about 5490.0321492683. The cubic root of 30140453 is about 311.2074070628.

Adding to 30140453 its reverse (35404103), we get a palindrome (65544556).

The spelling of 30140453 in words is "thirty million, one hundred forty thousand, four hundred fifty-three".