1496391761 has 4 divisors (see below), whose sum is σ = 1497168624. Its totient is φ = 1495614900.

The previous prime is 1496391749. The next prime is 1496391769. The reversal of 1496391761 is 1671936941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1671936941 = 1163 ⋅1437607.

It is a cyclic number.

It is not a de Polignac number, because 1496391761 - 2¹⁰ = 1496390737 is a prime.

It is a super-2 number, since 2×1496391761² = 4478376604777362242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1496391769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385535 + ... + 389396.

It is an arithmetic number, because the mean of its divisors is an integer number (374292156).

Almost surely, 2^1496391761 is an apocalyptic number.

It is an amenable number.

1496391761 is a deficient number, since it is larger than the sum of its proper divisors (776863).

1496391761 is an equidigital number, since it uses as much as digits as its factorization.

1496391761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776862.

The product of its digits is 244944, while the sum is 47.

The square root of 1496391761 is about 38683.2232498793. The cubic root of 1496391761 is about 1143.7956383553.

The spelling of 1496391761 in words is "one billion, four hundred ninety-six million, three hundred ninety-one thousand, seven hundred sixty-one".