102245020 has 24 divisors (see below), whose sum is σ = 214923744. Its totient is φ = 40858176.

The previous prime is 102245009. The next prime is 102245029. The reversal of 102245020 is 20542201.

It is a super-2 number, since 2×102245020² = 20908088229600800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102244985 and 102245003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102245029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27174 + ... + 30706.

It is an arithmetic number, because the mean of its divisors is an integer number (8955156).

Almost surely, 2^102245020 is an apocalyptic number.

102245020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102245020 is an abundant number, since it is smaller than the sum of its proper divisors (112678724).

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

102245020 is a wasteful number, since it uses less digits than its factorization.

102245020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989 (or 4987 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 102245020 is about 10111.6279599281. The cubic root of 102245020 is about 467.6066958852.

Adding to 102245020 its reverse (20542201), we get a palindrome (122787221).

The spelling of 102245020 in words is "one hundred two million, two hundred forty-five thousand, twenty".