30741213 has 4 divisors (see below), whose sum is σ = 40988288. Its totient is φ = 20494140.

The previous prime is 30741211. The next prime is 30741229. The reversal of 30741213 is 31214703.

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 not a de Polignac number, because 30741213 - 2¹ = 30741211 is a prime.

It is a super-2 number, since 2×30741213² = 1890044353422738, which contains 22 as substring.

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 30741213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30741211) 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, 5123533 + ... + 5123538.

It is an arithmetic number, because the mean of its divisors is an integer number (10247072).

Almost surely, 2^30741213 is an apocalyptic number.

It is an amenable number.

30741213 is a deficient number, since it is larger than the sum of its proper divisors (10247075).

30741213 is a wasteful number, since it uses less digits than its factorization.

30741213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10247074.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 30741213 is about 5544.4758994877. The cubic root of 30741213 is about 313.2614833242.

Adding to 30741213 its reverse (31214703), we get a palindrome (61955916).

The spelling of 30741213 in words is "thirty million, seven hundred forty-one thousand, two hundred thirteen".