102520148 has 12 divisors (see below), whose sum is σ = 179573940. Its totient is φ = 51213312.

The previous prime is 102520139. The next prime is 102520153. The reversal of 102520148 is 841025201.

It can be written as a sum of positive squares in 2 ways, for example, as 54937744 + 47582404 = 7412^2 + 6898^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6503 + ... + 15726.

It is an arithmetic number, because the mean of its divisors is an integer number (14964495).

Almost surely, 2^102520148 is an apocalyptic number.

It is an amenable number.

102520148 is a deficient number, since it is larger than the sum of its proper divisors (77053792).

102520148 is a wasteful number, since it uses less digits than its factorization.

102520148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23386 (or 23384 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 102520148 is about 10125.2233555611. The cubic root of 102520148 is about 468.0257430990.

Adding to 102520148 its reverse (841025201), we get a palindrome (943545349).

The spelling of 102520148 in words is "one hundred two million, five hundred twenty thousand, one hundred forty-eight".