102561282 has 32 divisors (see below), whose sum is σ = 228346560. Its totient is φ = 34122240.

The previous prime is 102561281. The next prime is 102561287. The reversal of 102561282 is 282165201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (102561281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33133 + ... + 36095.

It is an arithmetic number, because the mean of its divisors is an integer number (7135830).

Almost surely, 2^102561282 is an apocalyptic number.

102561282 is an abundant number, since it is smaller than the sum of its proper divisors (125785278).

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

102561282 is a wasteful number, since it uses less digits than its factorization.

102561282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615 (or 3609 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 102561282 is about 10127.2544156844. The cubic root of 102561282 is about 468.0883298103.

The spelling of 102561282 in words is "one hundred two million, five hundred sixty-one thousand, two hundred eighty-two".