4487631145 has 16 divisors (see below), whose sum is σ = 5688156672. Its totient is φ = 3393492480.

The previous prime is 4487631139. The next prime is 4487631149. The reversal of 4487631145 is 5411367844.

It is not a de Polignac number, because 4487631145 - 2⁹ = 4487630633 is a prime.

It is a super-2 number, since 2×4487631145² = 40277666587148022050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4487631149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329992 + ... + 343321.

It is an arithmetic number, because the mean of its divisors is an integer number (355509792).

Almost surely, 2^4487631145 is an apocalyptic number.

It is an amenable number.

4487631145 is a deficient number, since it is larger than the sum of its proper divisors (1200525527).

4487631145 is a wasteful number, since it uses less digits than its factorization.

4487631145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673392.

The product of its digits is 322560, while the sum is 43.

The square root of 4487631145 is about 66989.7838853060. The cubic root of 4487631145 is about 1649.4496046083.

Adding to 4487631145 its reverse (5411367844), we get a palindrome (9898998989).

The spelling of 4487631145 in words is "four billion, four hundred eighty-seven million, six hundred thirty-one thousand, one hundred forty-five".