102045425 has 12 divisors (see below), whose sum is σ = 127068876. Its totient is φ = 81292800.

The previous prime is 102045401. The next prime is 102045443. The reversal of 102045425 is 524540201.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 781456 + 101263969 = 884^2 + 10063^2 .

It is not a de Polignac number, because 102045425 - 2¹⁰ = 102044401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102045425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2444 + ... + 14493.

It is an arithmetic number, because the mean of its divisors is an integer number (10589073).

Almost surely, 2^102045425 is an apocalyptic number.

It is an amenable number.

102045425 is a deficient number, since it is larger than the sum of its proper divisors (25023451).

102045425 is a wasteful number, since it uses less digits than its factorization.

102045425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17188 (or 17183 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 102045425 is about 10101.7535606448. The cubic root of 102045425 is about 467.3022221929.

Adding to 102045425 its reverse (524540201), we get a palindrome (626585626).

The spelling of 102045425 in words is "one hundred two million, forty-five thousand, four hundred twenty-five".