61360039 has 4 divisors (see below), whose sum is σ = 66080056. Its totient is φ = 56640024.

The previous prime is 61360031. The next prime is 61360043. The reversal of 61360039 is 93006316.

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

It is a cyclic number.

It is not a de Polignac number, because 61360039 - 2³ = 61360031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61359989 and 61360016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61360031) 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, 2359989 + ... + 2360014.

It is an arithmetic number, because the mean of its divisors is an integer number (16520014).

Almost surely, 2^61360039 is an apocalyptic number.

61360039 is a deficient number, since it is larger than the sum of its proper divisors (4720017).

61360039 is a wasteful number, since it uses less digits than its factorization.

61360039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720016.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 61360039 is about 7833.2649004103. The cubic root of 61360039 is about 394.4226763421.

The spelling of 61360039 in words is "sixty-one million, three hundred sixty thousand, thirty-nine".