1464147649 has 4 divisors (see below), whose sum is σ = 1465856964. Its totient is φ = 1462438336.

The previous prime is 1464147647. The next prime is 1464147653. The reversal of 1464147649 is 9467414641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1238547249 + 225600400 = 35193^2 + 15020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1464147649 - 2¹ = 1464147647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1464147599 and 1464147608.

It is not an unprimeable number, because it can be changed into a prime (1464147647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853372 + ... + 855085.

It is an arithmetic number, because the mean of its divisors is an integer number (366464241).

Almost surely, 2^1464147649 is an apocalyptic number.

It is an amenable number.

1464147649 is a deficient number, since it is larger than the sum of its proper divisors (1709315).

1464147649 is an equidigital number, since it uses as much as digits as its factorization.

1464147649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709314.

The product of its digits is 580608, while the sum is 46.

The square root of 1464147649 is about 38264.1823249890. The cubic root of 1464147649 is about 1135.5204452043.

The spelling of 1464147649 in words is "one billion, four hundred sixty-four million, one hundred forty-seven thousand, six hundred forty-nine".