1457709349 has 2 divisors, whose sum is σ = 1457709350. Its totient is φ = 1457709348.

The previous prime is 1457709301. The next prime is 1457709359. The reversal of 1457709349 is 9439077541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1439064225 + 18645124 = 37935^2 + 4318^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457709349 - 2¹⁹ = 1457185061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457709359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728854674 + 728854675.

It is an arithmetic number, because the mean of its divisors is an integer number (728854675).

Almost surely, 2^1457709349 is an apocalyptic number.

It is an amenable number.

1457709349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457709349 is an equidigital number, since it uses as much as digits as its factorization.

1457709349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 1457709349 is about 38179.9600445050. The cubic root of 1457709349 is about 1133.8535906565.

The spelling of 1457709349 in words is "one billion, four hundred fifty-seven million, seven hundred nine thousand, three hundred forty-nine".