45494947 has 2 divisors, whose sum is σ = 45494948. Its totient is φ = 45494946.

The previous prime is 45494927. The next prime is 45494951. The reversal of 45494947 is 74949454.

45494947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45494947 - 2¹¹ = 45492899 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 45494897 and 45494906.

It is not a weakly prime, because it can be changed into another prime (45494927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22747473 + 22747474.

It is an arithmetic number, because the mean of its divisors is an integer number (22747474).

Almost surely, 2^45494947 is an apocalyptic number.

45494947 is a deficient number, since it is larger than the sum of its proper divisors (1).

45494947 is an equidigital number, since it uses as much as digits as its factorization.

45494947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The square root of 45494947 is about 6744.9942179367. The cubic root of 45494947 is about 356.9886329999.

The spelling of 45494947 in words is "forty-five million, four hundred ninety-four thousand, nine hundred forty-seven".