102520000 has 140 divisors (see below), whose sum is σ = 278517096. Its totient is φ = 37120000.

The previous prime is 102519931. The next prime is 102520021. The reversal of 102520000 is 25201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 439884 + ... + 440116.

Almost surely, 2^102520000 is an apocalyptic number.

102520000 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 102520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139258548).

102520000 is an abundant number, since it is smaller than the sum of its proper divisors (175997096).

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

102520000 is an equidigital number, since it uses as much as digits as its factorization.

102520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 102520000 is about 10125.2160470777. The cubic root of 102520000 is about 468.0255178820.

Adding to 102520000 its reverse (25201), we get a palindrome (102545201).

It can be divided in two parts, 1025 and 20000, that added together give a square (21025 = 145²).

The spelling of 102520000 in words is "one hundred two million, five hundred twenty thousand".