102522620 has 12 divisors (see below), whose sum is σ = 215297544. Its totient is φ = 41009040.

The previous prime is 102522601. The next prime is 102522643. The reversal of 102522620 is 26225201.

It is a super-2 number, since 2×102522620² = 21021775223328800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5126131 = 102522620 / (1 + 0 + 2 + 5 + 2 + 2 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 102522592 and 102522601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2563046 + ... + 2563085.

It is an arithmetic number, because the mean of its divisors is an integer number (17941462).

Almost surely, 2^102522620 is an apocalyptic number.

102522620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102522620 is an abundant number, since it is smaller than the sum of its proper divisors (112774924).

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

102522620 is a wasteful number, since it uses less digits than its factorization.

102522620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126140 (or 5126138 counting only the distinct ones).

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

The square root of 102522620 is about 10125.3454262065. The cubic root of 102522620 is about 468.0295047997.

Adding to 102522620 its reverse (26225201), we get a palindrome (128747821).

The spelling of 102522620 in words is "one hundred two million, five hundred twenty-two thousand, six hundred twenty".