61452613 has 4 divisors (see below), whose sum is σ = 61469280. Its totient is φ = 61435948.

The previous prime is 61452607. The next prime is 61452617. The reversal of 61452613 is 31625416.

61452613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61452613 - 2⁹ = 61452101 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 (61452617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73 + ... + 11086.

It is an arithmetic number, because the mean of its divisors is an integer number (15367320).

Almost surely, 2^61452613 is an apocalyptic number.

It is an amenable number.

61452613 is a deficient number, since it is larger than the sum of its proper divisors (16667).

61452613 is a wasteful number, since it uses less digits than its factorization.

61452613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16666.

The product of its digits is 4320, while the sum is 28.

The square root of 61452613 is about 7839.1717036942. The cubic root of 61452613 is about 394.6209320704.

The spelling of 61452613 in words is "sixty-one million, four hundred fifty-two thousand, six hundred thirteen".