2045314721 has 8 divisors (see below), whose sum is σ = 2135002560. Its totient is φ = 1955690352.

The previous prime is 2045314699. The next prime is 2045314723. The reversal of 2045314721 is 1274135402.

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 2045314721 - 2¹⁴ = 2045298337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045314723) 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, 57206 + ... + 85808.

It is an arithmetic number, because the mean of its divisors is an integer number (266875320).

Almost surely, 2^2045314721 is an apocalyptic number.

It is an amenable number.

2045314721 is a deficient number, since it is larger than the sum of its proper divisors (89687839).

2045314721 is a wasteful number, since it uses less digits than its factorization.

2045314721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31735.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2045314721 is about 45225.1558427387. The cubic root of 2045314721 is about 1269.3655708618.

The spelling of 2045314721 in words is "two billion, forty-five million, three hundred fourteen thousand, seven hundred twenty-one".