5111142 has 32 divisors (see below), whose sum is σ = 10644480. Its totient is φ = 1634880.

The previous prime is 5111137. The next prime is 5111149. The reversal of 5111142 is 2411115.

It is a happy number.

It is a super-2 number, since 2×5111142² = 52247545088328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19303 + ... + 19565.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

Almost surely, 2^5111142 is an apocalyptic number.

5111142 is an abundant number, since it is smaller than the sum of its proper divisors (5533338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5111142 is a wasteful number, since it uses less digits than its factorization.

5111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its digits is 40, while the sum is 15.

The square root of 5111142 is about 2260.7834925087. The cubic root of 5111142 is about 172.2553220845.

Adding to 5111142 its reverse (2411115), we get a palindrome (7522257).

It can be divided in two parts, 5111 and 142, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 5111142 in words is "five million, one hundred eleven thousand, one hundred forty-two".