30145313 has 4 divisors (see below), whose sum is σ = 32885808. Its totient is φ = 27404820.

The previous prime is 30145303. The next prime is 30145321. The reversal of 30145313 is 31354103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30145313 - 2²⁰ = 29096737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30145303) 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, 1370231 + ... + 1370252.

It is an arithmetic number, because the mean of its divisors is an integer number (8221452).

Almost surely, 2^30145313 is an apocalyptic number.

It is an amenable number.

30145313 is a deficient number, since it is larger than the sum of its proper divisors (2740495).

30145313 is a wasteful number, since it uses less digits than its factorization.

30145313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740494.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 30145313 is about 5490.4747517860. The cubic root of 30145313 is about 311.2241330525.

Adding to 30145313 its reverse (31354103), we get a palindrome (61499416).

The spelling of 30145313 in words is "thirty million, one hundred forty-five thousand, three hundred thirteen".