2144545407 has 12 divisors (see below), whose sum is σ = 3169716264. Its totient is φ = 1396447920.

The previous prime is 2144545391. The next prime is 2144545411. The reversal of 2144545407 is 7045454412.

2144545407 is a `hidden beast` number, since 21 + 44 + 54 + 540 + 7 = 666.

It is not a de Polignac number, because 2144545407 - 2⁴ = 2144545391 is a prime.

It is a super-3 number, since 3×2144545407³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144585407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2770344 + ... + 2771117.

It is an arithmetic number, because the mean of its divisors is an integer number (264143022).

Almost surely, 2^2144545407 is an apocalyptic number.

2144545407 is a deficient number, since it is larger than the sum of its proper divisors (1025170857).

2144545407 is a wasteful number, since it uses less digits than its factorization.

2144545407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541510 (or 5541507 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

The square root of 2144545407 is about 46309.2367352346. The cubic root of 2144545407 is about 1289.5704771555.

Adding to 2144545407 its reverse (7045454412), we get a palindrome (9189999819).

The spelling of 2144545407 in words is "two billion, one hundred forty-four million, five hundred forty-five thousand, four hundred seven".