10721135 has 8 divisors (see below), whose sum is σ = 13622256. Its totient is φ = 8072320.

The previous prime is 10721107. The next prime is 10721141. The reversal of 10721135 is 53112701.

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

It is not a de Polignac number, because 10721135 - 2¹⁴ = 10704751 is a prime.

It is a super-2 number, since 2×10721135² = 229885471376450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62981 + ... + 63150.

It is an arithmetic number, because the mean of its divisors is an integer number (1702782).

Almost surely, 2^10721135 is an apocalyptic number.

10721135 is a deficient number, since it is larger than the sum of its proper divisors (2901121).

10721135 is a wasteful number, since it uses less digits than its factorization.

10721135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126153.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 10721135 is about 3274.3144320605. The cubic root of 10721135 is about 220.5025357798.

Adding to 10721135 its reverse (53112701), we get a palindrome (63833836).

The spelling of 10721135 in words is "ten million, seven hundred twenty-one thousand, one hundred thirty-five".