102655212 has 48 divisors (see below), whose sum is σ = 262386432. Its totient is φ = 30978880.

The previous prime is 102655211. The next prime is 102655213. The reversal of 102655212 is 212556201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102655211) and next prime (102655213).

It is not an unprimeable number, because it can be changed into a prime (102655211) 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, 33238 + ... + 36194.

It is an arithmetic number, because the mean of its divisors is an integer number (5466384).

Almost surely, 2^102655212 is an apocalyptic number.

102655212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102655212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131193216).

102655212 is an abundant number, since it is smaller than the sum of its proper divisors (159731220).

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

102655212 is a wasteful number, since it uses less digits than its factorization.

102655212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238 (or 3236 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 102655212 is about 10131.8908403121. The cubic root of 102655212 is about 468.2311846327.

The spelling of 102655212 in words is "one hundred two million, six hundred fifty-five thousand, two hundred twelve".