945291649 has 8 divisors (see below), whose sum is σ = 977518080. Its totient is φ = 913173600.

The previous prime is 945291533. The next prime is 945291689. The reversal of 945291649 is 946192549.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 945291649 - 2¹³ = 945283457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945291689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9157 + ... + 44434.

It is an arithmetic number, because the mean of its divisors is an integer number (122189760).

Almost surely, 2^945291649 is an apocalyptic number.

It is an amenable number.

945291649 is a deficient number, since it is larger than the sum of its proper divisors (32226431).

945291649 is a wasteful number, since it uses less digits than its factorization.

945291649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54191.

The product of its digits is 699840, while the sum is 49.

The square root of 945291649 is about 30745.5956032730. The cubic root of 945291649 is about 981.4208353944.

It can be divided in two parts, 9452 and 91649, that added together give a palindrome (101101).

The spelling of 945291649 in words is "nine hundred forty-five million, two hundred ninety-one thousand, six hundred forty-nine".