30245517 has 6 divisors (see below), whose sum is σ = 43687982. Its totient is φ = 20163672.

The previous prime is 30245513. The next prime is 30245519. The reversal of 30245517 is 71554203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18610596 + 11634921 = 4314^2 + 3411^2 .

It is not a de Polignac number, because 30245517 - 2² = 30245513 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 (30245513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1680298 + ... + 1680315.

Almost surely, 2^30245517 is an apocalyptic number.

It is an amenable number.

30245517 is a deficient number, since it is larger than the sum of its proper divisors (13442465).

30245517 is a wasteful number, since it uses less digits than its factorization.

30245517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360619 (or 3360616 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 30245517 is about 5499.5924394449. The cubic root of 30245517 is about 311.5685913809.

The spelling of 30245517 in words is "thirty million, two hundred forty-five thousand, five hundred seventeen".