147999123 has 16 divisors (see below), whose sum is σ = 219648000. Its totient is φ = 98490600.

The previous prime is 147999119. The next prime is 147999143. The reversal of 147999123 is 321999741.

It is not a de Polignac number, because 147999123 - 2² = 147999119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147999143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11598 + ... + 20748.

It is an arithmetic number, because the mean of its divisors is an integer number (13728000).

Almost surely, 2^147999123 is an apocalyptic number.

147999123 is a deficient number, since it is larger than the sum of its proper divisors (71648877).

147999123 is an equidigital number, since it uses as much as digits as its factorization.

147999123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9759 (or 9753 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 147999123 is about 12165.4890160651. The cubic root of 147999123 is about 528.9562024577.

The spelling of 147999123 in words is "one hundred forty-seven million, nine hundred ninety-nine thousand, one hundred twenty-three".