45187049 has 2 divisors, whose sum is σ = 45187050. Its totient is φ = 45187048.

The previous prime is 45187007. The next prime is 45187091. The reversal of 45187049 is 94078154.

It is a balanced prime because it is at equal distance from previous prime (45187007) and next prime (45187091).

It can be written as a sum of positive squares in only one way, i.e., 25000000 + 20187049 = 5000^2 + 4493^2 .

It is a cyclic number.

It is not a de Polignac number, because 45187049 - 2¹⁶ = 45121513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45187099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22593524 + 22593525.

It is an arithmetic number, because the mean of its divisors is an integer number (22593525).

Almost surely, 2^45187049 is an apocalyptic number.

It is an amenable number.

45187049 is a deficient number, since it is larger than the sum of its proper divisors (1).

45187049 is an equidigital number, since it uses as much as digits as its factorization.

45187049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 45187049 is about 6722.1312840497. The cubic root of 45187049 is about 356.1814738823.

The spelling of 45187049 in words is "forty-five million, one hundred eighty-seven thousand, forty-nine".