1351473049 has 2 divisors, whose sum is σ = 1351473050. Its totient is φ = 1351473048.

The previous prime is 1351473047. The next prime is 1351473083. The reversal of 1351473049 is 9403741531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 733055625 + 618417424 = 27075^2 + 24868^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351473049 - 2¹ = 1351473047 is a prime.

Together with 1351473047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1351472999 and 1351473017.

It is not a weakly prime, because it can be changed into another prime (1351473047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675736524 + 675736525.

It is an arithmetic number, because the mean of its divisors is an integer number (675736525).

Almost surely, 2^1351473049 is an apocalyptic number.

It is an amenable number.

1351473049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351473049 is an equidigital number, since it uses as much as digits as its factorization.

1351473049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1351473049 is about 36762.3863344044. The cubic root of 1351473049 is about 1105.6112856153.

The spelling of 1351473049 in words is "one billion, three hundred fifty-one million, four hundred seventy-three thousand, forty-nine".