61061173 has 2 divisors, whose sum is σ = 61061174. Its totient is φ = 61061172.

The previous prime is 61061149. The next prime is 61061201. The reversal of 61061173 is 37116016.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32524209 + 28536964 = 5703^2 + 5342^2 .

It is a cyclic number.

It is not a de Polignac number, because 61061173 - 2²¹ = 58964021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61061123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30530586 + 30530587.

It is an arithmetic number, because the mean of its divisors is an integer number (30530587).

Almost surely, 2^61061173 is an apocalyptic number.

It is an amenable number.

61061173 is a deficient number, since it is larger than the sum of its proper divisors (1).

61061173 is an equidigital number, since it uses as much as digits as its factorization.

61061173 is an evil number, because the sum of its binary digits is even.

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

The square root of 61061173 is about 7814.1648946001. The cubic root of 61061173 is about 393.7812630590.

Adding to 61061173 its reverse (37116016), we get a palindrome (98177189).

The spelling of 61061173 in words is "sixty-one million, sixty-one thousand, one hundred seventy-three".