2145450855 has 8 divisors (see below), whose sum is σ = 3432721392. Its totient is φ = 1144240448.

The previous prime is 2145450817. The next prime is 2145450859. The reversal of 2145450855 is 5580545412.

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 2145450855 - 2⁸ = 2145450599 is a prime.

It is a nialpdrome in base 15.

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 7 ways as a sum of consecutive naturals, for example, 71515014 + ... + 71515043.

It is an arithmetic number, because the mean of its divisors is an integer number (429090174).

Almost surely, 2^2145450855 is an apocalyptic number.

2145450855 is a deficient number, since it is larger than the sum of its proper divisors (1287270537).

2145450855 is a wasteful number, since it uses less digits than its factorization.

2145450855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143030065.

The product of its (nonzero) digits is 160000, while the sum is 39.

The square root of 2145450855 is about 46319.0118094072. The cubic root of 2145450855 is about 1289.7519413661.

The spelling of 2145450855 in words is "two billion, one hundred forty-five million, four hundred fifty thousand, eight hundred fifty-five".