102102525145 has 8 divisors (see below), whose sum is σ = 122542061760. Its totient is φ = 81669332400.

The previous prime is 102102525143. The next prime is 102102525163. The reversal of 102102525145 is 541525201201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102102525145 - 2¹ = 102102525143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102102525143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550485 + ... + 1614994.

It is an arithmetic number, because the mean of its divisors is an integer number (15317757720).

Almost surely, 2^102102525145 is an apocalyptic number.

It is an amenable number.

102102525145 is a deficient number, since it is larger than the sum of its proper divisors (20439536615).

102102525145 is an equidigital number, since it uses as much as digits as its factorization.

102102525145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171935.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 102102525145 its reverse (541525201201), we get a palindrome (643627726346).

The spelling of 102102525145 in words is "one hundred two billion, one hundred two million, five hundred twenty-five thousand, one hundred forty-five".