101080345 has 4 divisors (see below), whose sum is σ = 121296420. Its totient is φ = 80864272.

The previous prime is 101080339. The next prime is 101080349. The reversal of 101080345 is 543080101.

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 47775744 + 53304601 = 6912^2 + 7301^2 .

It is a cyclic number.

It is not a de Polignac number, because 101080345 - 2⁵ = 101080313 is a prime.

It is a super-2 number, since 2×101080345² = 20434472290638050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101080349) 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, 10108030 + ... + 10108039.

It is an arithmetic number, because the mean of its divisors is an integer number (30324105).

Almost surely, 2^101080345 is an apocalyptic number.

It is an amenable number.

101080345 is a deficient number, since it is larger than the sum of its proper divisors (20216075).

101080345 is an equidigital number, since it uses as much as digits as its factorization.

101080345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20216074.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 101080345 is about 10053.8721396286. The cubic root of 101080345 is about 465.8244056506.

The spelling of 101080345 in words is "one hundred one million, eighty thousand, three hundred forty-five".