2045695451 has 8 divisors (see below), whose sum is σ = 2129947008. Its totient is φ = 1963080000.

The previous prime is 2045695433. The next prime is 2045695453. The reversal of 2045695451 is 1545965402.

2045695451 = 5761² + 5762² + ... + 5821².

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

It is not a de Polignac number, because 2045695451 - 2²⁶ = 1978586587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2045695399 and 2045695408.

It is not an unprimeable number, because it can be changed into a prime (2045695453) 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, 406475 + ... + 411476.

It is an arithmetic number, because the mean of its divisors is an integer number (266243376).

Almost surely, 2^2045695451 is an apocalyptic number.

2045695451 is a deficient number, since it is larger than the sum of its proper divisors (84251557).

2045695451 is an equidigital number, since it uses as much as digits as its factorization.

2045695451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818053.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 2045695451 is about 45229.3649192646. The cubic root of 2045695451 is about 1269.4443290051. Note that the first 3 decimals are identical.

The spelling of 2045695451 in words is "two billion, forty-five million, six hundred ninety-five thousand, four hundred fifty-one".