123522401 has 4 divisors (see below), whose sum is σ = 130023600. Its totient is φ = 117021204.

The previous prime is 123522337. The next prime is 123522407. The reversal of 123522401 is 104225321.

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 123522401 - 2⁶ = 123522337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123522407) 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, 3250571 + ... + 3250608.

It is an arithmetic number, because the mean of its divisors is an integer number (32505900).

Almost surely, 2^123522401 is an apocalyptic number.

It is an amenable number.

123522401 is a deficient number, since it is larger than the sum of its proper divisors (6501199).

123522401 is an equidigital number, since it uses as much as digits as its factorization.

123522401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501198.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 123522401 is about 11114.0632083860. The cubic root of 123522401 is about 498.0220537751.

Adding to 123522401 its reverse (104225321), we get a palindrome (227747722).

The spelling of 123522401 in words is "one hundred twenty-three million, five hundred twenty-two thousand, four hundred one".