2145450854 has 8 divisors (see below), whose sum is σ = 3387554040. Its totient is φ = 1016266176.

The previous prime is 2145450817. The next prime is 2145450859. The reversal of 2145450854 is 4580545412.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 56459233 = 2145450854 / (2 + 1 + 4 + 5 + 4 + 5 + 0 + 8 + 5 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145450859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28229579 + ... + 28229654.

It is an arithmetic number, because the mean of its divisors is an integer number (423444255).

Almost surely, 2^2145450854 is an apocalyptic number.

2145450854 is a deficient number, since it is larger than the sum of its proper divisors (1242103186).

2145450854 is a wasteful number, since it uses less digits than its factorization.

2145450854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56459254.

The product of its (nonzero) digits is 128000, while the sum is 38.

The square root of 2145450854 is about 46319.0117986125. The cubic root of 2145450854 is about 1289.7519411658.

The spelling of 2145450854 in words is "two billion, one hundred forty-five million, four hundred fifty thousand, eight hundred fifty-four".