61122613 has 2 divisors, whose sum is σ = 61122614. Its totient is φ = 61122612.

The previous prime is 61122583. The next prime is 61122641. The reversal of 61122613 is 31622116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41964484 + 19158129 = 6478^2 + 4377^2 .

It is a cyclic number.

It is not a de Polignac number, because 61122613 - 2²⁵ = 27568181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61122653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30561306 + 30561307.

It is an arithmetic number, because the mean of its divisors is an integer number (30561307).

Almost surely, 2^61122613 is an apocalyptic number.

It is an amenable number.

61122613 is a deficient number, since it is larger than the sum of its proper divisors (1).

61122613 is an equidigital number, since it uses as much as digits as its factorization.

61122613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 61122613 is about 7818.0952283788. The cubic root of 61122613 is about 393.9132935538.

Adding to 61122613 its reverse (31622116), we get a palindrome (92744729).

The spelling of 61122613 in words is "sixty-one million, one hundred twenty-two thousand, six hundred thirteen".