123073961 has 4 divisors (see below), whose sum is σ = 123404292. Its totient is φ = 122743632.

The previous prime is 123073949. The next prime is 123073969. The reversal of 123073961 is 169370321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41731600 + 81342361 = 6460^2 + 9019^2 .

It is a cyclic number.

It is not a de Polignac number, because 123073961 - 2²⁶ = 55965097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123073969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164606 + ... + 165351.

It is an arithmetic number, because the mean of its divisors is an integer number (30851073).

Almost surely, 2^123073961 is an apocalyptic number.

It is an amenable number.

123073961 is a deficient number, since it is larger than the sum of its proper divisors (330331).

123073961 is an equidigital number, since it uses as much as digits as its factorization.

123073961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330330.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 123073961 is about 11093.8704246985. The cubic root of 123073961 is about 497.4186441380.

The spelling of 123073961 in words is "one hundred twenty-three million, seventy-three thousand, nine hundred sixty-one".