30830153 has 4 divisors (see below), whose sum is σ = 31411908. Its totient is φ = 30248400.

The previous prime is 30830147. The next prime is 30830159. The reversal of 30830153 is 35103803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35103803 = 7 ⋅5014829.

It is an interprime number because it is at equal distance from previous prime (30830147) and next prime (30830159).

It can be written as a sum of positive squares in 2 ways, for example, as 14077504 + 16752649 = 3752^2 + 4093^2 .

It is a cyclic number.

It is not a de Polignac number, because 30830153 - 2¹⁰ = 30829129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30830159) 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, 290798 + ... + 290903.

It is an arithmetic number, because the mean of its divisors is an integer number (7852977).

Almost surely, 2^30830153 is an apocalyptic number.

It is an amenable number.

30830153 is a deficient number, since it is larger than the sum of its proper divisors (581755).

30830153 is an equidigital number, since it uses as much as digits as its factorization.

30830153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581754.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30830153 is about 5552.4907023785. The cubic root of 30830153 is about 313.5633001932.

Adding to 30830153 its reverse (35103803), we get a palindrome (65933956).

The spelling of 30830153 in words is "thirty million, eight hundred thirty thousand, one hundred fifty-three".