11722601 has 12 divisors (see below), whose sum is σ = 13566000. Its totient is φ = 10094040.

The previous prime is 11722591. The next prime is 11722621. The reversal of 11722601 is 10622711.

It is a de Polignac number, because none of the positive numbers 2^k-11722601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11722621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251 + ... + 4848.

It is an arithmetic number, because the mean of its divisors is an integer number (1130500).

Almost surely, 2^11722601 is an apocalyptic number.

11722601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11722601 is a deficient number, since it is larger than the sum of its proper divisors (1843399).

11722601 is a wasteful number, since it uses less digits than its factorization.

11722601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140 (or 5129 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 11722601 is about 3423.8284127567. The cubic root of 11722601 is about 227.1649522018.

It can be divided in two parts, 1172 and 2601, that added together give a palindrome (3773).

The spelling of 11722601 in words is "eleven million, seven hundred twenty-two thousand, six hundred one".