61039 has 8 divisors (see below), whose sum is σ = 69120. Its totient is φ = 53400.

The previous prime is 61031. The next prime is 61043. The reversal of 61039 is 93016.

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 61039 - 2³ = 61031 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 (61031) 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, 252 + ... + 430.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2⁶¹⁰³⁹ is an apocalyptic number.

61039 is a deficient number, since it is larger than the sum of its proper divisors (8081).

61039 is a wasteful number, since it uses less digits than its factorization.

61039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 61039 is about 247.0607212812. The cubic root of 61039 is about 39.3733593001.

The spelling of 61039 in words is "sixty-one thousand, thirty-nine".