45857047 has 2 divisors, whose sum is σ = 45857048. Its totient is φ = 45857046.

The previous prime is 45856997. The next prime is 45857057. The reversal of 45857047 is 74075854.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45857047 - 2¹⁵ = 45824279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45857057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22928523 + 22928524.

It is an arithmetic number, because the mean of its divisors is an integer number (22928524).

Almost surely, 2^45857047 is an apocalyptic number.

45857047 is a deficient number, since it is larger than the sum of its proper divisors (1).

45857047 is an equidigital number, since it uses as much as digits as its factorization.

45857047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 45857047 is about 6771.7831477389. The cubic root of 45857047 is about 357.9332371367.

The spelling of 45857047 in words is "forty-five million, eight hundred fifty-seven thousand, forty-seven".