245252213 has 4 divisors (see below), whose sum is σ = 246536448. Its totient is φ = 243967980.

The previous prime is 245252207. The next prime is 245252219. The reversal of 245252213 is 312252542.

245252213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (245252207) and next prime (245252219).

It is a cyclic number.

It is not a de Polignac number, because 245252213 - 2⁸ = 245251957 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 (245252219) 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, 641831 + ... + 642212.

It is an arithmetic number, because the mean of its divisors is an integer number (61634112).

Almost surely, 2^245252213 is an apocalyptic number.

It is an amenable number.

245252213 is a deficient number, since it is larger than the sum of its proper divisors (1284235).

245252213 is a wasteful number, since it uses less digits than its factorization.

245252213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284234.

The product of its digits is 4800, while the sum is 26.

The square root of 245252213 is about 15660.5304188587. The cubic root of 245252213 is about 625.9471191130.

The spelling of 245252213 in words is "two hundred forty-five million, two hundred fifty-two thousand, two hundred thirteen".