123721467 has 4 divisors (see below), whose sum is σ = 164961960. Its totient is φ = 82480976.

The previous prime is 123721379. The next prime is 123721487. The reversal of 123721467 is 764127321.

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

It is a cyclic number.

It is not a de Polignac number, because 123721467 - 2¹² = 123717371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123721487) 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, 20620242 + ... + 20620247.

It is an arithmetic number, because the mean of its divisors is an integer number (41240490).

Almost surely, 2^123721467 is an apocalyptic number.

123721467 is a deficient number, since it is larger than the sum of its proper divisors (41240493).

123721467 is an equidigital number, since it uses as much as digits as its factorization.

123721467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41240492.

The product of its digits is 14112, while the sum is 33.

The square root of 123721467 is about 11123.0151937323. The cubic root of 123721467 is about 498.2894440031.

Adding to 123721467 its reverse (764127321), we get a palindrome (887848788).

The spelling of 123721467 in words is "one hundred twenty-three million, seven hundred twenty-one thousand, four hundred sixty-seven".