61049 has 4 divisors (see below), whose sum is σ = 62580. Its totient is φ = 59520.

The previous prime is 61043. The next prime is 61051. The reversal of 61049 is 94016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7225 + 53824 = 85^2 + 232^2 .

It is a cyclic number.

It is not a de Polignac number, because 61049 - 2⁸ = 60793 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 61049.

It is not an unprimeable number, because it can be changed into a prime (61043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (15645).

2⁶¹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

61049 is a deficient number, since it is larger than the sum of its proper divisors (1531).

61049 is a wasteful number, since it uses less digits than its factorization.

61049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 61049 is about 247.0809583922. The cubic root of 61049 is about 39.3755093577.

It can be divided in two parts, 610 and 49, that multiplied together give a triangular number (29890 = T₂₄₄).

The spelling of 61049 in words is "sixty-one thousand, forty-nine".