1455947649 has 32 divisors (see below), whose sum is σ = 2325747200. Its totient is φ = 894862080.

The previous prime is 1455947641. The next prime is 1455947657. The reversal of 1455947649 is 9467495541.

1455947649 is a `hidden beast` number, since 1 + 4 + 5 + 594 + 7 + 6 + 49 = 666.

It is an interprime number because it is at equal distance from previous prime (1455947641) and next prime (1455947657).

It is not a de Polignac number, because 1455947649 - 2³ = 1455947641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1455947595 and 1455947604.

It is not an unprimeable number, because it can be changed into a prime (1455947641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352104 + ... + 356214.

It is an arithmetic number, because the mean of its divisors is an integer number (72679600).

Almost surely, 2^1455947649 is an apocalyptic number.

It is an amenable number.

1455947649 is a deficient number, since it is larger than the sum of its proper divisors (869799551).

1455947649 is a wasteful number, since it uses less digits than its factorization.

1455947649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142 (or 5136 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 1455947649 is about 38156.8820660179. The cubic root of 1455947649 is about 1133.3966374002.

The spelling of 1455947649 in words is "one billion, four hundred fifty-five million, nine hundred forty-seven thousand, six hundred forty-nine".