102542132 has 36 divisors (see below), whose sum is σ = 224116704. Its totient is φ = 39882240.

The previous prime is 102542131. The next prime is 102542161. The reversal of 102542132 is 231245201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102542131) by changing a digit.

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, 177428 + ... + 178004.

It is an arithmetic number, because the mean of its divisors is an integer number (6225464).

Almost surely, 2^102542132 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 102542132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112058352).

102542132 is an abundant number, since it is smaller than the sum of its proper divisors (121574572).

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

102542132 is an equidigital number, since it uses as much as digits as its factorization.

102542132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102542132 is about 10126.3089030505. The cubic root of 102542132 is about 468.0591945482.

Adding to 102542132 its reverse (231245201), we get a palindrome (333787333).

The spelling of 102542132 in words is "one hundred two million, five hundred forty-two thousand, one hundred thirty-two".