102143415 has 32 divisors (see below), whose sum is σ = 179467776. Its totient is φ = 49196160.

The previous prime is 102143413. The next prime is 102143453. The reversal of 102143415 is 514341201.

It is not a de Polignac number, because 102143415 - 2¹ = 102143413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102143391 and 102143400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102143413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23934 + ... + 27876.

It is an arithmetic number, because the mean of its divisors is an integer number (5608368).

Almost surely, 2^102143415 is an apocalyptic number.

102143415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102143415 is a deficient number, since it is larger than the sum of its proper divisors (77324361).

102143415 is a wasteful number, since it uses less digits than its factorization.

102143415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 102143415 is about 10106.6025448713. The cubic root of 102143415 is about 467.4517513381.

Adding to 102143415 its reverse (514341201), we get a palindrome (616484616).

The spelling of 102143415 in words is "one hundred two million, one hundred forty-three thousand, four hundred fifteen".