45211649 has 8 divisors (see below), whose sum is σ = 51739968. Its totient is φ = 38700720.

The previous prime is 45211633. The next prime is 45211651. The reversal of 45211649 is 94611254.

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 45211649 - 2⁴ = 45211633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45211679) 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, 1814 + ... + 9680.

It is an arithmetic number, because the mean of its divisors is an integer number (6467496).

It is a Proth number, since it is equal to 5519 ⋅ 2¹³ + 1 and 5519 < 2¹³.

Almost surely, 2^45211649 is an apocalyptic number.

It is an amenable number.

45211649 is a deficient number, since it is larger than the sum of its proper divisors (6528319).

45211649 is an equidigital number, since it uses as much as digits as its factorization.

45211649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695.

The product of its digits is 8640, while the sum is 32.

The square root of 45211649 is about 6723.9608119025. The cubic root of 45211649 is about 356.2460976694.

The spelling of 45211649 in words is "forty-five million, two hundred eleven thousand, six hundred forty-nine".