123226501 has 4 divisors (see below), whose sum is σ = 123252012. Its totient is φ = 123200992.

The previous prime is 123226487. The next prime is 123226507. The reversal of 123226501 is 105622321.

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 7986276 + 115240225 = 2826^2 + 10735^2 .

It is a cyclic number.

It is not a de Polignac number, because 123226501 - 2⁵ = 123226469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123226507) 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, 3046 + ... + 15991.

It is an arithmetic number, because the mean of its divisors is an integer number (30813003).

Almost surely, 2^123226501 is an apocalyptic number.

It is an amenable number.

123226501 is a deficient number, since it is larger than the sum of its proper divisors (25511).

123226501 is an equidigital number, since it uses as much as digits as its factorization.

123226501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25510.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 123226501 is about 11100.7432634036. The cubic root of 123226501 is about 497.6240623908.

Adding to 123226501 its reverse (105622321), we get a palindrome (228848822).

The spelling of 123226501 in words is "one hundred twenty-three million, two hundred twenty-six thousand, five hundred one".