123976 has 8 divisors (see below), whose sum is σ = 232470. Its totient is φ = 61984.

The previous prime is 123973. The next prime is 123979. The reversal of 123976 is 679321.

It is an interprime number because it is at equal distance from previous prime (123973) and next prime (123979).

It can be written as a sum of positive squares in only one way, i.e., 72900 + 51076 = 270^2 + 226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (123973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7741 + ... + 7756.

2¹²³⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

123976 is a deficient number, since it is larger than the sum of its proper divisors (108494).

123976 is a wasteful number, since it uses less digits than its factorization.

123976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15503 (or 15499 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 123976 is about 352.1022578740. The cubic root of 123976 is about 49.8630921335.

It can be divided in two parts, 12397 and 6, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 123976 in words is "one hundred twenty-three thousand, nine hundred seventy-six".