11342551 has 4 divisors (see below), whose sum is σ = 12373704. Its totient is φ = 10311400.

The previous prime is 11342549. The next prime is 11342579. The reversal of 11342551 is 15524311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11342551 - 2¹ = 11342549 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 (11342351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515560 + ... + 515581.

It is an arithmetic number, because the mean of its divisors is an integer number (3093426).

Almost surely, 2^11342551 is an apocalyptic number.

11342551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11342551 is a deficient number, since it is larger than the sum of its proper divisors (1031153).

11342551 is a wasteful number, since it uses less digits than its factorization.

11342551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031152.

The product of its digits is 600, while the sum is 22.

The square root of 11342551 is about 3367.8703953686. The cubic root of 11342551 is about 224.6830170144.

Adding to 11342551 its reverse (15524311), we get a palindrome (26866862).

The spelling of 11342551 in words is "eleven million, three hundred forty-two thousand, five hundred fifty-one".