1496243857 has 2 divisors, whose sum is σ = 1496243858. Its totient is φ = 1496243856.

The previous prime is 1496243821. The next prime is 1496243869. The reversal of 1496243857 is 7583426941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1495832976 + 410881 = 38676^2 + 641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1496243857 is a prime.

It is a super-2 number, since 2×1496243857² = 4477491359220472898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1496243857.

It is not a weakly prime, because it can be changed into another prime (1496243257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748121928 + 748121929.

It is an arithmetic number, because the mean of its divisors is an integer number (748121929).

Almost surely, 2^1496243857 is an apocalyptic number.

It is an amenable number.

1496243857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1496243857 is an equidigital number, since it uses as much as digits as its factorization.

1496243857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 49.

The square root of 1496243857 is about 38681.3114694939. The cubic root of 1496243857 is about 1143.7579526973.

The spelling of 1496243857 in words is "one billion, four hundred ninety-six million, two hundred forty-three thousand, eight hundred fifty-seven".