61032143 has 2 divisors, whose sum is σ = 61032144. Its totient is φ = 61032142.

The previous prime is 61032131. The next prime is 61032163. The reversal of 61032143 is 34123016.

It is an a-pointer prime, because the next prime (61032163) can be obtained adding 61032143 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61032143 - 2⁶ = 61032079 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61032163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30516071 + 30516072.

It is an arithmetic number, because the mean of its divisors is an integer number (30516072).

Almost surely, 2^61032143 is an apocalyptic number.

61032143 is a deficient number, since it is larger than the sum of its proper divisors (1).

61032143 is an equidigital number, since it uses as much as digits as its factorization.

61032143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 61032143 is about 7812.3071496198. The cubic root of 61032143 is about 393.7188486987.

Adding to 61032143 its reverse (34123016), we get a palindrome (95155159).

The spelling of 61032143 in words is "sixty-one million, thirty-two thousand, one hundred forty-three".