10143855 has 24 divisors (see below), whose sum is σ = 17697888. Its totient is φ = 5374656.

The previous prime is 10143839. The next prime is 10143857. The reversal of 10143855 is 55834101.

It is not a de Polignac number, because 10143855 - 2⁴ = 10143839 is a prime.

It is a super-2 number, since 2×10143855² = 205795588522050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10143857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7134 + ... + 8436.

It is an arithmetic number, because the mean of its divisors is an integer number (737412).

Almost surely, 2^10143855 is an apocalyptic number.

10143855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10143855 is a deficient number, since it is larger than the sum of its proper divisors (7554033).

10143855 is a wasteful number, since it uses less digits than its factorization.

10143855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 10143855 is about 3184.9419146980. The cubic root of 10143855 is about 216.4716417333.

Adding to 10143855 its reverse (55834101), we get a palindrome (65977956).

It can be divided in two parts, 101 and 43855, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 10143855 in words is "ten million, one hundred forty-three thousand, eight hundred fifty-five".