4002131045 has 16 divisors (see below), whose sum is σ = 5360997312. Its totient is φ = 2842949760.

The previous prime is 4002131039. The next prime is 4002131047. The reversal of 4002131045 is 5401312004.

It is not a de Polignac number, because 4002131045 - 2¹⁴ = 4002114661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002131047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 843752 + ... + 848481.

It is an arithmetic number, because the mean of its divisors is an integer number (335062332).

Almost surely, 2^4002131045 is an apocalyptic number.

It is an amenable number.

4002131045 is a deficient number, since it is larger than the sum of its proper divisors (1358866267).

4002131045 is a wasteful number, since it uses less digits than its factorization.

4002131045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692292.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4002131045 is about 63262.3983500468. The cubic root of 4002131045 is about 1587.6829038438.

Adding to 4002131045 its reverse (5401312004), we get a palindrome (9403443049).

The spelling of 4002131045 in words is "four billion, two million, one hundred thirty-one thousand, forty-five".