102375540 has 72 divisors (see below), whose sum is σ = 311999688. Its totient is φ = 27171840.

The previous prime is 102375529. The next prime is 102375551. The reversal of 102375540 is 45573201.

It is a happy number.

102375540 is a `hidden beast` number, since 102 + 3 + 7 + 554 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (102375529) and next prime (102375551).

It can be written as a sum of positive squares in 4 ways, for example, as 527076 + 101848464 = 726^2 + 10092^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40720 + ... + 43160.

It is an arithmetic number, because the mean of its divisors is an integer number (4333329).

Almost surely, 2^102375540 is an apocalyptic number.

102375540 is a gapful number since it is divisible by the number (10) 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 102375540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155999844).

102375540 is an abundant number, since it is smaller than the sum of its proper divisors (209624148).

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

102375540 is a wasteful number, since it uses less digits than its factorization.

102375540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 102375540 is about 10118.0798573642. The cubic root of 102375540 is about 467.8055843800.

The spelling of 102375540 in words is "one hundred two million, three hundred seventy-five thousand, five hundred forty".