2106715145 has 8 divisors (see below), whose sum is σ = 2547357120. Its totient is φ = 1672506160.

The previous prime is 2106715099. The next prime is 2106715147. The reversal of 2106715145 is 5415176012.

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

It is not a de Polignac number, because 2106715145 - 2¹² = 2106711049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2106715147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1607525 + ... + 1608834.

It is an arithmetic number, because the mean of its divisors is an integer number (318419640).

Almost surely, 2^2106715145 is an apocalyptic number.

It is an amenable number.

2106715145 is a deficient number, since it is larger than the sum of its proper divisors (440641975).

2106715145 is a wasteful number, since it uses less digits than its factorization.

2106715145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216495.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 2106715145 is about 45898.9667095023. The cubic root of 2106715145 is about 1281.9426769070.

The spelling of 2106715145 in words is "two billion, one hundred six million, seven hundred fifteen thousand, one hundred forty-five".