123941969 has 8 divisors (see below), whose sum is σ = 128462760. Its totient is φ = 119437696.

The previous prime is 123941947. The next prime is 123941977. The reversal of 123941969 is 969149321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6436369 + 117505600 = 2537^2 + 10840^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123941969 is a prime.

It is a super-2 number, since 2×123941969² = 30723223359193922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123941929) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12317 + ... + 19989.

It is an arithmetic number, because the mean of its divisors is an integer number (16057845).

Almost surely, 2^123941969 is an apocalyptic number.

It is an amenable number.

123941969 is a deficient number, since it is larger than the sum of its proper divisors (4520791).

123941969 is an equidigital number, since it uses as much as digits as its factorization.

123941969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8259.

The product of its digits is 104976, while the sum is 44.

The square root of 123941969 is about 11132.9227519102. The cubic root of 123941969 is about 498.5852929833.

The spelling of 123941969 in words is "one hundred twenty-three million, nine hundred forty-one thousand, nine hundred sixty-nine".