45487249 has 12 divisors (see below), whose sum is σ = 47347716. Its totient is φ = 43690752.

The previous prime is 45487241. The next prime is 45487259. The reversal of 45487249 is 94278454.

It can be written as a sum of positive squares in 2 ways, for example, as 18861649 + 26625600 = 4343^2 + 5160^2 .

It is not a de Polignac number, because 45487249 - 2³ = 45487241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45487241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134809 + ... + 135145.

It is an arithmetic number, because the mean of its divisors is an integer number (3945643).

Almost surely, 2^45487249 is an apocalyptic number.

It is an amenable number.

45487249 is a deficient number, since it is larger than the sum of its proper divisors (1860467).

45487249 is an equidigital number, since it uses as much as digits as its factorization.

45487249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 453 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 45487249 is about 6744.4235483843. The cubic root of 45487249 is about 356.9684970384.

The spelling of 45487249 in words is "forty-five million, four hundred eighty-seven thousand, two hundred forty-nine".