1612118257 has 2 divisors, whose sum is σ = 1612118258. Its totient is φ = 1612118256.

The previous prime is 1612118243. The next prime is 1612118269. The reversal of 1612118257 is 7528112161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1574184976 + 37933281 = 39676^2 + 6159^2 .

It is a cyclic number.

It is not a de Polignac number, because 1612118257 - 2²³ = 1603729649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1612118297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806059128 + 806059129.

It is an arithmetic number, because the mean of its divisors is an integer number (806059129).

Almost surely, 2^1612118257 is an apocalyptic number.

It is an amenable number.

1612118257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612118257 is an equidigital number, since it uses as much as digits as its factorization.

1612118257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 34.

The square root of 1612118257 is about 40151.1924729515. The cubic root of 1612118257 is about 1172.5525048660.

The spelling of 1612118257 in words is "one billion, six hundred twelve million, one hundred eighteen thousand, two hundred fifty-seven".