10531142 has 4 divisors (see below), whose sum is σ = 15796716. Its totient is φ = 5265570.

The previous prime is 10531139. The next prime is 10531151. The reversal of 10531142 is 24113501.

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

It is a super-2 number, since 2×10531142² = 221809903648328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10531142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2632784 + ... + 2632787.

It is an arithmetic number, because the mean of its divisors is an integer number (3949179).

Almost surely, 2^10531142 is an apocalyptic number.

10531142 is a deficient number, since it is larger than the sum of its proper divisors (5265574).

10531142 is an equidigital number, since it uses as much as digits as its factorization.

10531142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265573.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 10531142 is about 3245.1721063759. The cubic root of 10531142 is about 219.1922305973.

Adding to 10531142 its reverse (24113501), we get a palindrome (34644643).

The spelling of 10531142 in words is "ten million, five hundred thirty-one thousand, one hundred forty-two".