61873159 has 2 divisors, whose sum is σ = 61873160. Its totient is φ = 61873158.

The previous prime is 61873157. The next prime is 61873171. The reversal of 61873159 is 95137816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61873159 - 2¹ = 61873157 is a prime.

Together with 61873157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61873157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30936579 + 30936580.

It is an arithmetic number, because the mean of its divisors is an integer number (30936580).

Almost surely, 2^61873159 is an apocalyptic number.

61873159 is a deficient number, since it is larger than the sum of its proper divisors (1).

61873159 is an equidigital number, since it uses as much as digits as its factorization.

61873159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 61873159 is about 7865.9493387639. The cubic root of 61873159 is about 395.5190718986.

The spelling of 61873159 in words is "sixty-one million, eight hundred seventy-three thousand, one hundred fifty-nine".