2045389715 has 4 divisors (see below), whose sum is σ = 2454467664. Its totient is φ = 1636311768.

The previous prime is 2045389699. The next prime is 2045389739. The reversal of 2045389715 is 5179835402.

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

It is a cyclic number.

It is not a de Polignac number, because 2045389715 - 2⁴ = 2045389699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204538967 + ... + 204538976.

It is an arithmetic number, because the mean of its divisors is an integer number (613616916).

Almost surely, 2^2045389715 is an apocalyptic number.

2045389715 is a deficient number, since it is larger than the sum of its proper divisors (409077949).

2045389715 is an equidigital number, since it uses as much as digits as its factorization.

2045389715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409077948.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 2045389715 is about 45225.9849533429. The cubic root of 2045389715 is about 1269.3810849597.

The spelling of 2045389715 in words is "two billion, forty-five million, three hundred eighty-nine thousand, seven hundred fifteen".