61249 has 4 divisors (see below), whose sum is σ = 63936. Its totient is φ = 58564.

The previous prime is 61231. The next prime is 61253. The reversal of 61249 is 94216.

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 a 4-Lehmer number, since φ(61249) divides (61249-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 61249 - 2⁷ = 61121 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61949) 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, 1309 + ... + 1354.

It is an arithmetic number, because the mean of its divisors is an integer number (15984).

2⁶¹²⁴⁹ is an apocalyptic number.

It is an amenable number.

61249 is a deficient number, since it is larger than the sum of its proper divisors (2687).

61249 is a wasteful number, since it uses less digits than its factorization.

61249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686.

The product of its digits is 432, while the sum is 22.

The square root of 61249 is about 247.4853531020. The cubic root of 61249 is about 39.4184612910.

The spelling of 61249 in words is "sixty-one thousand, two hundred forty-nine".