10143649 has 8 divisors (see below), whose sum is σ = 10593000. Its totient is φ = 9700992.

The previous prime is 10143641. The next prime is 10143659. The reversal of 10143649 is 94634101.

10143649 = T₆₇ + T₆₈ + ... + T₃₉₃.

10143649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2663424 + 7480225 = 1632^2 + 2735^2 .

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 10143649 - 2³ = 10143641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10143641) 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, 1557 + ... + 4765.

It is an arithmetic number, because the mean of its divisors is an integer number (1324125).

Almost surely, 2^10143649 is an apocalyptic number.

It is an amenable number.

10143649 is a deficient number, since it is larger than the sum of its proper divisors (449351).

10143649 is a wasteful number, since it uses less digits than its factorization.

10143649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 10143649 is about 3184.9095748545. The cubic root of 10143649 is about 216.4701763647.

The spelling of 10143649 in words is "ten million, one hundred forty-three thousand, six hundred forty-nine".