102544920 has 64 divisors (see below), whose sum is σ = 341820000. Its totient is φ = 27345024.

The previous prime is 102544903. The next prime is 102544921. The reversal of 102544920 is 29445201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102544921) 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, 46395 + ... + 48554.

Almost surely, 2^102544920 is an apocalyptic number.

102544920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102544920 is an abundant number, since it is smaller than the sum of its proper divisors (239275080).

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

102544920 is a wasteful number, since it uses less digits than its factorization.

102544920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94969 (or 94959 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 102544920 is about 10126.4465633311. The cubic root of 102544920 is about 468.0634365028.

The spelling of 102544920 in words is "one hundred two million, five hundred forty-four thousand, nine hundred twenty".