61043189 has 2 divisors, whose sum is σ = 61043190. Its totient is φ = 61043188.

The previous prime is 61043183. The next prime is 61043197. The reversal of 61043189 is 98134016.

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., 60996100 + 47089 = 7810^2 + 217^2 .

It is a cyclic number.

It is not a de Polignac number, because 61043189 - 2²⁴ = 44265973 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61043183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30521594 + 30521595.

It is an arithmetic number, because the mean of its divisors is an integer number (30521595).

Almost surely, 2^61043189 is an apocalyptic number.

It is an amenable number.

61043189 is a deficient number, since it is larger than the sum of its proper divisors (1).

61043189 is an equidigital number, since it uses as much as digits as its factorization.

61043189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 61043189 is about 7813.0140790863. The cubic root of 61043189 is about 393.7425998777.

The spelling of 61043189 in words is "sixty-one million, forty-three thousand, one hundred eighty-nine".