102143532 has 48 divisors (see below), whose sum is σ = 245826560. Its totient is φ = 32985792.

The previous prime is 102143527. The next prime is 102143551. The reversal of 102143532 is 235341201.

It is a super-2 number, since 2×102143532² = 20866602258870048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102143499 and 102143508.

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, 167973 + ... + 168579.

Almost surely, 2^102143532 is an apocalyptic number.

102143532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102143532 is an abundant number, since it is smaller than the sum of its proper divisors (143683028).

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

102143532 is a wasteful number, since it uses less digits than its factorization.

102143532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102143532 is about 10106.6083331650. The cubic root of 102143532 is about 467.4519298187.

Adding to 102143532 its reverse (235341201), we get a palindrome (337484733).

The spelling of 102143532 in words is "one hundred two million, one hundred forty-three thousand, five hundred thirty-two".