102065545 has 8 divisors (see below), whose sum is σ = 124789896. Its totient is φ = 80111616.

The previous prime is 102065519. The next prime is 102065591. The reversal of 102065545 is 545560201.

It can be written as a sum of positive squares in 4 ways, for example, as 38576521 + 63489024 = 6211^2 + 7968^2 .

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 102065545 - 2¹⁷ = 101934473 is a prime.

It is a super-2 number, since 2×102065545² = 20834750952294050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192312 + ... + 192841.

It is an arithmetic number, because the mean of its divisors is an integer number (15598737).

Almost surely, 2^102065545 is an apocalyptic number.

It is an amenable number.

102065545 is a deficient number, since it is larger than the sum of its proper divisors (22724351).

102065545 is an equidigital number, since it uses as much as digits as its factorization.

102065545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385211.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 102065545 is about 10102.7493782633. The cubic root of 102065545 is about 467.3329323819.

It can be divided in two parts, 10206 and 5545, that added together give a palindrome (15751).

The spelling of 102065545 in words is "one hundred two million, sixty-five thousand, five hundred forty-five".