30453013 has 4 divisors (see below), whose sum is σ = 30477388. Its totient is φ = 30428640.

The previous prime is 30453011. The next prime is 30453023. The reversal of 30453013 is 31035403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31035403 = 7 ⋅4433629.

It can be written as a sum of positive squares in 2 ways, for example, as 26030404 + 4422609 = 5102^2 + 2103^2 .

It is a cyclic number.

It is not a de Polignac number, because 30453013 - 2¹ = 30453011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30453011) 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, 10206 + ... + 12847.

It is an arithmetic number, because the mean of its divisors is an integer number (7619347).

Almost surely, 2^30453013 is an apocalyptic number.

It is an amenable number.

30453013 is a deficient number, since it is larger than the sum of its proper divisors (24375).

30453013 is a wasteful number, since it uses less digits than its factorization.

30453013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24374.

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

The square root of 30453013 is about 5518.4248658471. The cubic root of 30453013 is about 312.2794621050.

Adding to 30453013 its reverse (31035403), we get a palindrome (61488416).

The spelling of 30453013 in words is "thirty million, four hundred fifty-three thousand, thirteen".