11142146 has 4 divisors (see below), whose sum is σ = 16713222. Its totient is φ = 5571072.

The previous prime is 11142107. The next prime is 11142181. The reversal of 11142146 is 64124111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64124111 = 463 ⋅138497.

It can be written as a sum of positive squares in only one way, i.e., 9541921 + 1600225 = 3089^2 + 1265^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785535 + ... + 2785538.

Almost surely, 2^11142146 is an apocalyptic number.

11142146 is a deficient number, since it is larger than the sum of its proper divisors (5571076).

11142146 is an equidigital number, since it uses as much as digits as its factorization.

11142146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571075.

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

The square root of 11142146 is about 3337.9853205190. The cubic root of 11142146 is about 223.3518813337.

Adding to 11142146 its reverse (64124111), we get a palindrome (75266257).

The spelling of 11142146 in words is "eleven million, one hundred forty-two thousand, one hundred forty-six".