612859249 has 2 divisors, whose sum is σ = 612859250. Its totient is φ = 612859248.

The previous prime is 612859241. The next prime is 612859279. The reversal of 612859249 is 942958216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424071649 + 188787600 = 20593^2 + 13740^2 .

It is a cyclic number.

It is not a de Polignac number, because 612859249 - 2³ = 612859241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612859199 and 612859208.

It is not a weakly prime, because it can be changed into another prime (612859241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306429624 + 306429625.

It is an arithmetic number, because the mean of its divisors is an integer number (306429625).

Almost surely, 2^612859249 is an apocalyptic number.

It is an amenable number.

612859249 is a deficient number, since it is larger than the sum of its proper divisors (1).

612859249 is an equidigital number, since it uses as much as digits as its factorization.

612859249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 46.

The square root of 612859249 is about 24755.9942034248. The cubic root of 612859249 is about 849.4156301753.

The spelling of 612859249 in words is "six hundred twelve million, eight hundred fifty-nine thousand, two hundred forty-nine".