102243132 has 18 divisors (see below), whose sum is σ = 258448008. Its totient is φ = 34081032.

The previous prime is 102243131. The next prime is 102243133. The reversal of 102243132 is 231342201.

It is an interprime number because it is at equal distance from previous prime (102243131) and next prime (102243133).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102243131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420008 + ... + 1420079.

Almost surely, 2^102243132 is an apocalyptic number.

102243132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102243132 is an abundant number, since it is smaller than the sum of its proper divisors (156204876).

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

102243132 is a wasteful number, since it uses less digits than its factorization.

102243132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840097 (or 2840092 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 102243132 is about 10111.5346016319. The cubic root of 102243132 is about 467.6038176786.

Adding to 102243132 its reverse (231342201), we get a palindrome (333585333).

The spelling of 102243132 in words is "one hundred two million, two hundred forty-three thousand, one hundred thirty-two".