102475540 has 12 divisors (see below), whose sum is σ = 215198676. Its totient is φ = 40990208.

The previous prime is 102475517. The next prime is 102475543. The reversal of 102475540 is 45574201.

It can be written as a sum of positive squares in 2 ways, for example, as 47389456 + 55086084 = 6884^2 + 7422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102475499 and 102475508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102475543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2561869 + ... + 2561908.

It is an arithmetic number, because the mean of its divisors is an integer number (17933223).

Almost surely, 2^102475540 is an apocalyptic number.

102475540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102475540 is an abundant number, since it is smaller than the sum of its proper divisors (112723136).

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

102475540 is a wasteful number, since it uses less digits than its factorization.

102475540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123786 (or 5123784 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 102475540 is about 10123.0203002859. The cubic root of 102475540 is about 467.9578516599.

The spelling of 102475540 in words is "one hundred two million, four hundred seventy-five thousand, five hundred forty".