1496647861 has 2 divisors, whose sum is σ = 1496647862. Its totient is φ = 1496647860.

The previous prime is 1496647849. The next prime is 1496647877. The reversal of 1496647861 is 1687466941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1451152836 + 45495025 = 38094^2 + 6745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1496647861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1496647799 and 1496647808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1496647961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748323930 + 748323931.

It is an arithmetic number, because the mean of its divisors is an integer number (748323931).

Almost surely, 2^1496647861 is an apocalyptic number.

It is an amenable number.

1496647861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1496647861 is an equidigital number, since it uses as much as digits as its factorization.

1496647861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 1496647861 is about 38686.5333287954. The cubic root of 1496647861 is about 1143.8608862761.

The spelling of 1496647861 in words is "one billion, four hundred ninety-six million, six hundred forty-seven thousand, eight hundred sixty-one".