45578147 has 2 divisors, whose sum is σ = 45578148. Its totient is φ = 45578146.

The previous prime is 45578089. The next prime is 45578167. The reversal of 45578147 is 74187554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45578147 - 2⁶ = 45578083 is a prime.

It is not a weakly prime, because it can be changed into another prime (45578167) 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, 22789073 + 22789074.

It is an arithmetic number, because the mean of its divisors is an integer number (22789074).

Almost surely, 2^45578147 is an apocalyptic number.

45578147 is a deficient number, since it is larger than the sum of its proper divisors (1).

45578147 is an equidigital number, since it uses as much as digits as its factorization.

45578147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 41.

The square root of 45578147 is about 6751.1589375455. The cubic root of 45578147 is about 357.2061177159.

It can be divided in two parts, 45578 and 147, that multiplied together give a palindrome (6699966).

The spelling of 45578147 in words is "forty-five million, five hundred seventy-eight thousand, one hundred forty-seven".