10721512 has 16 divisors (see below), whose sum is σ = 20162340. Its totient is φ = 5344896.

The previous prime is 10721489. The next prime is 10721549. The reversal of 10721512 is 21512701.

It can be written as a sum of positive squares in 2 ways, for example, as 10666756 + 54756 = 3266^2 + 234^2 .

It is a super-2 number, since 2×10721512² = 229901639132288, 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 10721512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188 + ... + 4780.

Almost surely, 2^10721512 is an apocalyptic number.

It is an amenable number.

10721512 is a deficient number, since it is larger than the sum of its proper divisors (9440828).

10721512 is a wasteful number, since it uses less digits than its factorization.

10721512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972 (or 3968 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 10721512 is about 3274.3720008576. The cubic root of 10721512 is about 220.5051203470.

The spelling of 10721512 in words is "ten million, seven hundred twenty-one thousand, five hundred twelve".