45739147 has 4 divisors (see below), whose sum is σ = 46253160. Its totient is φ = 45225136.

The previous prime is 45739121. The next prime is 45739151. The reversal of 45739147 is 74193754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74193754 = 2 ⋅37096877.

It is a cyclic number.

It is not a de Polignac number, because 45739147 - 2¹⁵ = 45706379 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45739247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256873 + ... + 257050.

It is an arithmetic number, because the mean of its divisors is an integer number (11563290).

Almost surely, 2^45739147 is an apocalyptic number.

45739147 is a deficient number, since it is larger than the sum of its proper divisors (514013).

45739147 is an equidigital number, since it uses as much as digits as its factorization.

45739147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514012.

The product of its digits is 105840, while the sum is 40.

The square root of 45739147 is about 6763.0723048035. The cubic root of 45739147 is about 357.6262210994.

It can be divided in two parts, 4573 and 9147, that multiplied together give a triangular number (41829231 = T₉₁₄₆).

The spelling of 45739147 in words is "forty-five million, seven hundred thirty-nine thousand, one hundred forty-seven".