123143954 has 8 divisors (see below), whose sum is σ = 195581628. Its totient is φ = 57950080.

The previous prime is 123143941. The next prime is 123143981. The reversal of 123143954 is 459341321.

It can be written as a sum of positive squares in 2 ways, for example, as 96569929 + 26574025 = 9827^2 + 5155^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 123143954.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1810907 + ... + 1810974.

Almost surely, 2^123143954 is an apocalyptic number.

123143954 is a deficient number, since it is larger than the sum of its proper divisors (72437674).

123143954 is a wasteful number, since it uses less digits than its factorization.

123143954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621900.

The product of its digits is 12960, while the sum is 32.

The square root of 123143954 is about 11097.0245561592. The cubic root of 123143954 is about 497.5129213920.

The spelling of 123143954 in words is "one hundred twenty-three million, one hundred forty-three thousand, nine hundred fifty-four".