102143976 has 64 divisors (see below), whose sum is σ = 286130880. Its totient is φ = 30113280.

The previous prime is 102143959. The next prime is 102144001. The reversal of 102143976 is 679341201.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4540 + ... + 14996.

It is an arithmetic number, because the mean of its divisors is an integer number (4470795).

Almost surely, 2^102143976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102143976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143065440).

102143976 is an abundant number, since it is smaller than the sum of its proper divisors (183986904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102143976 is a wasteful number, since it uses less digits than its factorization.

102143976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514 (or 10510 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 102143976 is about 10106.6302989671. The cubic root of 102143976 is about 467.4526071282.

The spelling of 102143976 in words is "one hundred two million, one hundred forty-three thousand, nine hundred seventy-six".