1464431641 has 2 divisors, whose sum is σ = 1464431642. Its totient is φ = 1464431640.

The previous prime is 1464431627. The next prime is 1464431713. The reversal of 1464431641 is 1461344641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081094400 + 383337241 = 32880^2 + 19579^2 .

It is a cyclic number.

It is not a de Polignac number, because 1464431641 - 2¹³ = 1464423449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1464431597 and 1464431606.

It is not a weakly prime, because it can be changed into another prime (1464434641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 732215820 + 732215821.

It is an arithmetic number, because the mean of its divisors is an integer number (732215821).

Almost surely, 2^1464431641 is an apocalyptic number.

It is an amenable number.

1464431641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1464431641 is an equidigital number, since it uses as much as digits as its factorization.

1464431641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 1464431641 is about 38267.8930828443. The cubic root of 1464431641 is about 1135.5938571708.

The spelling of 1464431641 in words is "one billion, four hundred sixty-four million, four hundred thirty-one thousand, six hundred forty-one".