102406143 has 32 divisors (see below), whose sum is σ = 171417600. Its totient is φ = 53022816.

The previous prime is 102406141. The next prime is 102406247. The reversal of 102406143 is 341604201.

It is not a de Polignac number, because 102406143 - 2¹ = 102406141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102406141) 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, 3598 + ... + 14756.

It is an arithmetic number, because the mean of its divisors is an integer number (5356800).

Almost surely, 2^102406143 is an apocalyptic number.

102406143 is a deficient number, since it is larger than the sum of its proper divisors (69011457).

102406143 is a wasteful number, since it uses less digits than its factorization.

102406143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11211.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 102406143 is about 10119.5920372315. The cubic root of 102406143 is about 467.8521932608.

The spelling of 102406143 in words is "one hundred two million, four hundred six thousand, one hundred forty-three".