11142087 has 8 divisors (see below), whose sum is σ = 16206720. Its totient is φ = 6752760.

The previous prime is 11142059. The next prime is 11142107. The reversal of 11142087 is 78024111.

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

It is not a de Polignac number, because 11142087 - 2⁸ = 11141831 is a prime.

It is a super-2 number, since 2×11142087² = 248292205431138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102087) 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, 168787 + ... + 168852.

It is an arithmetic number, because the mean of its divisors is an integer number (2025840).

Almost surely, 2^11142087 is an apocalyptic number.

11142087 is a deficient number, since it is larger than the sum of its proper divisors (5064633).

11142087 is a wasteful number, since it uses less digits than its factorization.

11142087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337653.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 11142087 is about 3337.9764828411. The cubic root of 11142087 is about 223.3514871013.

Adding to 11142087 its reverse (78024111), we get a palindrome (89166198).

The spelling of 11142087 in words is "eleven million, one hundred forty-two thousand, eighty-seven".