101304605 has 4 divisors (see below), whose sum is σ = 121565532. Its totient is φ = 81043680.

The previous prime is 101304601. The next prime is 101304611. The reversal of 101304605 is 506403101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28270489 + 73034116 = 5317^2 + 8546^2 .

It is not a de Polignac number, because 101304605 - 2² = 101304601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101304601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130456 + ... + 10130465.

It is an arithmetic number, because the mean of its divisors is an integer number (30391383).

Almost surely, 2^101304605 is an apocalyptic number.

It is an amenable number.

101304605 is a deficient number, since it is larger than the sum of its proper divisors (20260927).

101304605 is an equidigital number, since it uses as much as digits as its factorization.

101304605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260926.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 101304605 is about 10065.0188772799. The cubic root of 101304605 is about 466.1686487022.

Adding to 101304605 its reverse (506403101), we get a palindrome (607707706).

The spelling of 101304605 in words is "one hundred one million, three hundred four thousand, six hundred five".