945515649 has 16 divisors (see below), whose sum is σ = 1394359232. Its totient is φ = 566129088.

The previous prime is 945515647. The next prime is 945515653. The reversal of 945515649 is 946515549.

It is not a de Polignac number, because 945515649 - 2¹ = 945515647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 945515598 and 945515607.

It is not an unprimeable number, because it can be changed into a prime (945515647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326179 + ... + 329064.

It is an arithmetic number, because the mean of its divisors is an integer number (87147452).

Almost surely, 2^945515649 is an apocalyptic number.

It is an amenable number.

945515649 is a deficient number, since it is larger than the sum of its proper divisors (448843583).

945515649 is a wasteful number, since it uses less digits than its factorization.

945515649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655296.

The product of its digits is 972000, while the sum is 48.

The square root of 945515649 is about 30749.2381856852. The cubic root of 945515649 is about 981.4983497097.

The spelling of 945515649 in words is "nine hundred forty-five million, five hundred fifteen thousand, six hundred forty-nine".