61283543 has 2 divisors, whose sum is σ = 61283544. Its totient is φ = 61283542.

The previous prime is 61283513. The next prime is 61283567. The reversal of 61283543 is 34538216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61283543 - 2¹⁰ = 61282519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61283513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30641771 + 30641772.

It is an arithmetic number, because the mean of its divisors is an integer number (30641772).

Almost surely, 2^61283543 is an apocalyptic number.

61283543 is a deficient number, since it is larger than the sum of its proper divisors (1).

61283543 is an equidigital number, since it uses as much as digits as its factorization.

61283543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 61283543 is about 7828.3806115952. The cubic root of 61283543 is about 394.2587026096.

The spelling of 61283543 in words is "sixty-one million, two hundred eighty-three thousand, five hundred forty-three".