1352918249 has 2 divisors, whose sum is σ = 1352918250. Its totient is φ = 1352918248.

The previous prime is 1352918221. The next prime is 1352918251. The reversal of 1352918249 is 9428192531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1110555625 + 242362624 = 33325^2 + 15568^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352918249 - 2¹² = 1352914153 is a prime.

It is a Sophie Germain prime.

Together with 1352918251, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1352918279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676459124 + 676459125.

It is an arithmetic number, because the mean of its divisors is an integer number (676459125).

Almost surely, 2^1352918249 is an apocalyptic number.

It is an amenable number.

1352918249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1352918249 is an equidigital number, since it uses as much as digits as its factorization.

1352918249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 1352918249 is about 36782.0370425565. The cubic root of 1352918249 is about 1106.0052409916.

The spelling of 1352918249 in words is "one billion, three hundred fifty-two million, nine hundred eighteen thousand, two hundred forty-nine".