11142641 has 8 divisors (see below), whose sum is σ = 11585280. Its totient is φ = 10703952.

The previous prime is 11142631. The next prime is 11142653. The reversal of 11142641 is 14624111.

11142641 = T₁₉₈ + T₁₉₉ + ... + T₄₂₀.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11142641 - 2¹⁸ = 10880497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5606 + ... + 7328.

It is an arithmetic number, because the mean of its divisors is an integer number (1448160).

Almost surely, 2^11142641 is an apocalyptic number.

It is an amenable number.

11142641 is a deficient number, since it is larger than the sum of its proper divisors (442639).

11142641 is a wasteful number, since it uses less digits than its factorization.

11142641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its digits is 192, while the sum is 20.

The square root of 11142641 is about 3338.0594662169. The cubic root of 11142641 is about 223.3551888218.

Adding to 11142641 its reverse (14624111), we get a palindrome (25766752).

The spelling of 11142641 in words is "eleven million, one hundred forty-two thousand, six hundred forty-one".