102143100 has 36 divisors (see below), whose sum is σ = 295534904. Its totient is φ = 27238080.

The previous prime is 102143099. The next prime is 102143113. The reversal of 102143100 is 1341201.

It is a happy number.

It is a super-2 number, since 2×102143100² = 20866425755220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 169939 + ... + 170538.

Almost surely, 2^102143100 is an apocalyptic number.

102143100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102143100 is an abundant number, since it is smaller than the sum of its proper divisors (193391804).

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

102143100 is a wasteful number, since it uses less digits than its factorization.

102143100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340494 (or 340487 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102143100 is about 10106.5869609874. The cubic root of 102143100 is about 467.4512708129.

Adding to 102143100 its reverse (1341201), we get a palindrome (103484301).

The spelling of 102143100 in words is "one hundred two million, one hundred forty-three thousand, one hundred".