61327013 has 4 divisors (see below), whose sum is σ = 66902208. Its totient is φ = 55751820.

The previous prime is 61326977. The next prime is 61327033. The reversal of 61327013 is 31072316.

It is a happy number.

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 cyclic number.

It is not a de Polignac number, because 61327013 - 2⁸ = 61326757 is a prime.

It is a super-2 number, since 2×61327013² = 7522005047004338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61327013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61327033) 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, 2787581 + ... + 2787602.

It is an arithmetic number, because the mean of its divisors is an integer number (16725552).

Almost surely, 2^61327013 is an apocalyptic number.

It is an amenable number.

61327013 is a deficient number, since it is larger than the sum of its proper divisors (5575195).

61327013 is a wasteful number, since it uses less digits than its factorization.

61327013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575194.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 61327013 is about 7831.1565557075. The cubic root of 61327013 is about 394.3518998712.

Adding to 61327013 its reverse (31072316), we get a palindrome (92399329).

The spelling of 61327013 in words is "sixty-one million, three hundred twenty-seven thousand, thirteen".