6501245 has 8 divisors (see below), whose sum is σ = 7949016. Its totient is φ = 5102656.

The previous prime is 6501241. The next prime is 6501251. The reversal of 6501245 is 5421056.

It can be written as a sum of positive squares in 4 ways, for example, as 80089 + 6421156 = 283^2 + 2534^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6501245 - 2² = 6501241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6501245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12002 + ... + 12531.

It is an arithmetic number, because the mean of its divisors is an integer number (993627).

Almost surely, 2^6501245 is an apocalyptic number.

It is an amenable number.

6501245 is a deficient number, since it is larger than the sum of its proper divisors (1447771).

6501245 is a wasteful number, since it uses less digits than its factorization.

6501245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24591.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 6501245 is about 2549.7539096940. The cubic root of 6501245 is about 186.6374724043.

The spelling of 6501245 in words is "six million, five hundred one thousand, two hundred forty-five".