61152613 has 2 divisors, whose sum is σ = 61152614. Its totient is φ = 61152612.

The previous prime is 61152589. The next prime is 61152643. The reversal of 61152613 is 31625116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32924644 + 28227969 = 5738^2 + 5313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61152613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61152643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30576306 + 30576307.

It is an arithmetic number, because the mean of its divisors is an integer number (30576307).

Almost surely, 2^61152613 is an apocalyptic number.

It is an amenable number.

61152613 is a deficient number, since it is larger than the sum of its proper divisors (1).

61152613 is an equidigital number, since it uses as much as digits as its factorization.

61152613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 61152613 is about 7820.0136189140. The cubic root of 61152613 is about 393.9777294222.

Adding to 61152613 its reverse (31625116), we get a palindrome (92777729).

The spelling of 61152613 in words is "sixty-one million, one hundred fifty-two thousand, six hundred thirteen".