102045545 has 8 divisors (see below), whose sum is σ = 139948224. Its totient is φ = 69974064.

The previous prime is 102045539. The next prime is 102045547. The reversal of 102045545 is 545540201.

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

It is a cyclic number.

It is not a de Polignac number, because 102045545 - 2⁴ = 102045529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102045547) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1457759 + ... + 1457828.

It is an arithmetic number, because the mean of its divisors is an integer number (17493528).

Almost surely, 2^102045545 is an apocalyptic number.

It is an amenable number.

102045545 is a deficient number, since it is larger than the sum of its proper divisors (37902679).

102045545 is an equidigital number, since it uses as much as digits as its factorization.

102045545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915599.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 102045545 is about 10101.7595002059. The cubic root of 102045545 is about 467.3024053671.

Adding to 102045545 its reverse (545540201), we get a palindrome (647585746).

The spelling of 102045545 in words is "one hundred two million, forty-five thousand, five hundred forty-five".