612939143 has 2 divisors, whose sum is σ = 612939144. Its totient is φ = 612939142.

The previous prime is 612939133. The next prime is 612939149. The reversal of 612939143 is 341939216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612939143 - 2⁴ = 612939127 is a prime.

It is a super-3 number, since 3×612939143³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612939097 and 612939106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612939149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306469571 + 306469572.

It is an arithmetic number, because the mean of its divisors is an integer number (306469572).

Almost surely, 2^612939143 is an apocalyptic number.

612939143 is a deficient number, since it is larger than the sum of its proper divisors (1).

612939143 is an equidigital number, since it uses as much as digits as its factorization.

612939143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 612939143 is about 24757.6077802360. The cubic root of 612939143 is about 849.4525392827.

The spelling of 612939143 in words is "six hundred twelve million, nine hundred thirty-nine thousand, one hundred forty-three".