147666023 has 4 divisors (see below), whose sum is σ = 147812808. Its totient is φ = 147519240.

The previous prime is 147666019. The next prime is 147666031. The reversal of 147666023 is 320666741.

147666023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 147666023 - 2² = 147666019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147666083) 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, 71873 + ... + 73898.

It is an arithmetic number, because the mean of its divisors is an integer number (36953202).

Almost surely, 2^147666023 is an apocalyptic number.

147666023 is a deficient number, since it is larger than the sum of its proper divisors (146785).

147666023 is a wasteful number, since it uses less digits than its factorization.

147666023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146784.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 147666023 is about 12151.7909379647. The cubic root of 147666023 is about 528.5590657271.

The spelling of 147666023 in words is "one hundred forty-seven million, six hundred sixty-six thousand, twenty-three".