123943349 has 4 divisors (see below), whose sum is σ = 124063680. Its totient is φ = 123823020.

The previous prime is 123943333. The next prime is 123943357. The reversal of 123943349 is 943349321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123943349 - 2⁴ = 123943333 is a prime.

It is a super-2 number, since 2×123943349² = 30723907522671602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123943049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58607 + ... + 60684.

It is an arithmetic number, because the mean of its divisors is an integer number (31015920).

Almost surely, 2^123943349 is an apocalyptic number.

It is an amenable number.

123943349 is a deficient number, since it is larger than the sum of its proper divisors (120331).

123943349 is a wasteful number, since it uses less digits than its factorization.

123943349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120330.

The product of its digits is 69984, while the sum is 38.

The square root of 123943349 is about 11132.9847300713. The cubic root of 123943349 is about 498.5871434330.

The spelling of 123943349 in words is "one hundred twenty-three million, nine hundred forty-three thousand, three hundred forty-nine".