61136071 has 2 divisors, whose sum is σ = 61136072. Its totient is φ = 61136070.

The previous prime is 61136027. The next prime is 61136081. The reversal of 61136071 is 17063116.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61136071 - 2¹³ = 61127879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61136021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30568035 + 30568036.

It is an arithmetic number, because the mean of its divisors is an integer number (30568036).

Almost surely, 2^61136071 is an apocalyptic number.

61136071 is a deficient number, since it is larger than the sum of its proper divisors (1).

61136071 is an equidigital number, since it uses as much as digits as its factorization.

61136071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 61136071 is about 7818.9558765861. The cubic root of 61136071 is about 393.9422020915.

Adding to 61136071 its reverse (17063116), we get a palindrome (78199187).

The spelling of 61136071 in words is "sixty-one million, one hundred thirty-six thousand, seventy-one".