61245 has 12 divisors (see below), whose sum is σ = 106236. Its totient is φ = 32640.

The previous prime is 61231. The next prime is 61253. The reversal of 61245 is 54216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15876 + 45369 = 126^2 + 213^2 .

It is not a de Polignac number, because 61245 - 2⁹ = 60733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 636 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (8853).

2⁶¹²⁴⁵ is an apocalyptic number.

It is an amenable number.

61245 is a deficient number, since it is larger than the sum of its proper divisors (44991).

61245 is a wasteful number, since it uses less digits than its factorization.

61245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372 (or 1369 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 61245 is about 247.4772716837. The cubic root of 61245 is about 39.4176031693.

The spelling of 61245 in words is "sixty-one thousand, two hundred forty-five".