102543492 has 12 divisors (see below), whose sum is σ = 239268176. Its totient is φ = 34181160.

The previous prime is 102543491. The next prime is 102543503. The reversal of 102543492 is 294345201.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (102543491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4272634 + ... + 4272657.

Almost surely, 2^102543492 is an apocalyptic number.

102543492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102543492 is an abundant number, since it is smaller than the sum of its proper divisors (136724684).

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

102543492 is a wasteful number, since it uses less digits than its factorization.

102543492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8545298 (or 8545296 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 102543492 is about 10126.3760546407. The cubic root of 102543492 is about 468.0612638040.

Adding to 102543492 its reverse (294345201), we get a palindrome (396888693).

The spelling of 102543492 in words is "one hundred two million, five hundred forty-three thousand, four hundred ninety-two".