10140321 has 8 divisors (see below), whose sum is σ = 13535424. Its totient is φ = 6752720.

The previous prime is 10140311. The next prime is 10140323. The reversal of 10140321 is 12304101.

It is a happy number.

10140321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10140321 - 2⁵ = 10140289 is a prime.

It is a super-2 number, since 2×10140321² = 205652219966082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10140297 and 10140306.

It is not an unprimeable number, because it can be changed into a prime (10140323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3415 + ... + 5651.

It is an arithmetic number, because the mean of its divisors is an integer number (1691928).

Almost surely, 2^10140321 is an apocalyptic number.

It is an amenable number.

10140321 is a deficient number, since it is larger than the sum of its proper divisors (3395103).

10140321 is a wasteful number, since it uses less digits than its factorization.

10140321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 10140321 is about 3184.3870681813. The cubic root of 10140321 is about 216.4465000871.

Adding to 10140321 its reverse (12304101), we get a palindrome (22444422).

The spelling of 10140321 in words is "ten million, one hundred forty thousand, three hundred twenty-one".