11242501 has 2 divisors, whose sum is σ = 11242502. Its totient is φ = 11242500.

The previous prime is 11242481. The next prime is 11242507. The reversal of 11242501 is 10524211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5832225 + 5410276 = 2415^2 + 2326^2 .

It is an emirp because it is prime and its reverse (10524211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11242501 - 2⁷ = 11242373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11242507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621250 + 5621251.

It is an arithmetic number, because the mean of its divisors is an integer number (5621251).

Almost surely, 2^11242501 is an apocalyptic number.

11242501 is the 1500-th centered decagonal number.

It is an amenable number.

11242501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11242501 is an equidigital number, since it uses as much as digits as its factorization.

11242501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 11242501 is about 3352.9838949807. The cubic root of 11242501 is about 224.0204395146.

Adding to 11242501 its reverse (10524211), we get a palindrome (21766712).

The spelling of 11242501 in words is "eleven million, two hundred forty-two thousand, five hundred one".