10521142 has 8 divisors (see below), whose sum is σ = 16326000. Its totient is φ = 5079144.

The previous prime is 10521107. The next prime is 10521149. The reversal of 10521142 is 24112501.

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

It is a super-2 number, since 2×10521142² = 221388857968328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90642 + ... + 90757.

It is an arithmetic number, because the mean of its divisors is an integer number (2040750).

Almost surely, 2^10521142 is an apocalyptic number.

10521142 is a deficient number, since it is larger than the sum of its proper divisors (5804858).

10521142 is a wasteful number, since it uses less digits than its factorization.

10521142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181430.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 10521142 is about 3243.6309901097. The cubic root of 10521142 is about 219.1228295624.

Adding to 10521142 its reverse (24112501), we get a palindrome (34633643).

The spelling of 10521142 in words is "ten million, five hundred twenty-one thousand, one hundred forty-two".