1496385721 has 2 divisors, whose sum is σ = 1496385722. Its totient is φ = 1496385720.

The previous prime is 1496385707. The next prime is 1496385739. The reversal of 1496385721 is 1275836941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1443620025 + 52765696 = 37995^2 + 7264^2 .

It is a cyclic number.

It is not a de Polignac number, because 1496385721 - 2¹⁵ = 1496352953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1496385701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748192860 + 748192861.

It is an arithmetic number, because the mean of its divisors is an integer number (748192861).

Almost surely, 2^1496385721 is an apocalyptic number.

It is an amenable number.

1496385721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1496385721 is an equidigital number, since it uses as much as digits as its factorization.

1496385721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 1496385721 is about 38683.1451797808. The cubic root of 1496385721 is about 1143.7940994234.

The spelling of 1496385721 in words is "one billion, four hundred ninety-six million, three hundred eighty-five thousand, seven hundred twenty-one".