121626601 has 4 divisors (see below), whose sum is σ = 122355072. Its totient is φ = 120898132.

The previous prime is 121626577. The next prime is 121626607. The reversal of 121626601 is 106626121.

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 121626601 - 2⁵ = 121626569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121626607) 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, 363985 + ... + 364318.

It is an arithmetic number, because the mean of its divisors is an integer number (30588768).

Almost surely, 2^121626601 is an apocalyptic number.

It is an amenable number.

121626601 is a deficient number, since it is larger than the sum of its proper divisors (728471).

121626601 is an equidigital number, since it uses as much as digits as its factorization.

121626601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728470.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 121626601 is about 11028.4450853237. The cubic root of 121626601 is about 495.4610553108.

The spelling of 121626601 in words is "one hundred twenty-one million, six hundred twenty-six thousand, six hundred one".