102435545 has 4 divisors (see below), whose sum is σ = 122922660. Its totient is φ = 81948432.

The previous prime is 102435539. The next prime is 102435551. The reversal of 102435545 is 545534201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (102435539) and next prime (102435551).

It can be written as a sum of positive squares in 2 ways, for example, as 58491904 + 43943641 = 7648^2 + 6629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102435545 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 10243550 + ... + 10243559.

It is an arithmetic number, because the mean of its divisors is an integer number (30730665).

Almost surely, 2^102435545 is an apocalyptic number.

It is an amenable number.

102435545 is a deficient number, since it is larger than the sum of its proper divisors (20487115).

102435545 is an equidigital number, since it uses as much as digits as its factorization.

102435545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20487114.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 102435545 is about 10121.0446595201. The cubic root of 102435545 is about 467.8969642531.

Adding to 102435545 its reverse (545534201), we get a palindrome (647969746).

The spelling of 102435545 in words is "one hundred two million, four hundred thirty-five thousand, five hundred forty-five".