147845123 has 2 divisors, whose sum is σ = 147845124. Its totient is φ = 147845122.

The previous prime is 147845119. The next prime is 147845129. The reversal of 147845123 is 321548741.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 147845123 - 2² = 147845119 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (147845129) 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, 73922561 + 73922562.

It is an arithmetic number, because the mean of its divisors is an integer number (73922562).

Almost surely, 2^147845123 is an apocalyptic number.

147845123 is a deficient number, since it is larger than the sum of its proper divisors (1).

147845123 is an equidigital number, since it uses as much as digits as its factorization.

147845123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 147845123 is about 12159.1579889399. The cubic root of 147845123 is about 528.7726709071.

The spelling of 147845123 in words is "one hundred forty-seven million, eight hundred forty-five thousand, one hundred twenty-three".