2100501345 has 8 divisors (see below), whose sum is σ = 3360802176. Its totient is φ = 1120267376.

The previous prime is 2100501307. The next prime is 2100501373. The reversal of 2100501345 is 5431050012.

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 2100501345 - 2⁸ = 2100501089 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70016697 + ... + 70016726.

It is an arithmetic number, because the mean of its divisors is an integer number (420100272).

Almost surely, 2^2100501345 is an apocalyptic number.

It is an amenable number.

2100501345 is a deficient number, since it is larger than the sum of its proper divisors (1260300831).

2100501345 is a wasteful number, since it uses less digits than its factorization.

2100501345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140033431.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2100501345 is about 45831.2267455280. The cubic root of 2100501345 is about 1280.6810635395.

Adding to 2100501345 its reverse (5431050012), we get a palindrome (7531551357).

The spelling of 2100501345 in words is "two billion, one hundred million, five hundred one thousand, three hundred forty-five".