102523145 has 16 divisors (see below), whose sum is σ = 130248000. Its totient is φ = 77254848.

The previous prime is 102523139. The next prime is 102523159. The reversal of 102523145 is 541325201.

It is a cyclic number.

It is not a de Polignac number, because 102523145 - 2⁴ = 102523129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102523145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13991 + ... + 20019.

It is an arithmetic number, because the mean of its divisors is an integer number (8140500).

Almost surely, 2^102523145 is an apocalyptic number.

It is an amenable number.

102523145 is a deficient number, since it is larger than the sum of its proper divisors (27724855).

102523145 is a wasteful number, since it uses less digits than its factorization.

102523145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6232.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 102523145 is about 10125.3713512147. The cubic root of 102523145 is about 468.0303036968.

Adding to 102523145 its reverse (541325201), we get a palindrome (643848346).

The spelling of 102523145 in words is "one hundred two million, five hundred twenty-three thousand, one hundred forty-five".