147665423 has 2 divisors, whose sum is σ = 147665424. Its totient is φ = 147665422.

The previous prime is 147665351. The next prime is 147665429. The reversal of 147665423 is 324566741.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147665423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147665429) 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, 73832711 + 73832712.

It is an arithmetic number, because the mean of its divisors is an integer number (73832712).

Almost surely, 2^147665423 is an apocalyptic number.

147665423 is a deficient number, since it is larger than the sum of its proper divisors (1).

147665423 is an equidigital number, since it uses as much as digits as its factorization.

147665423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 38.

The square root of 147665423 is about 12151.7662502206. The cubic root of 147665423 is about 528.5583498416.

The spelling of 147665423 in words is "one hundred forty-seven million, six hundred sixty-five thousand, four hundred twenty-three".