123147973 has 8 divisors (see below), whose sum is σ = 132941816. Its totient is φ = 113400000.

The previous prime is 123147961. The next prime is 123147977. The reversal of 123147973 is 379741321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6140484 + 117007489 = 2478^2 + 10817^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123147973 - 2²¹ = 121050821 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 (123147977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5778 + ... + 16723.

It is an arithmetic number, because the mean of its divisors is an integer number (16617727).

Almost surely, 2^123147973 is an apocalyptic number.

123147973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123147973 is a deficient number, since it is larger than the sum of its proper divisors (9793843).

123147973 is a wasteful number, since it uses less digits than its factorization.

123147973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22935.

The product of its digits is 31752, while the sum is 37.

The square root of 123147973 is about 11097.2056392589. The cubic root of 123147973 is about 497.5183337099.

The spelling of 123147973 in words is "one hundred twenty-three million, one hundred forty-seven thousand, nine hundred seventy-three".