400254547131 has 48 divisors (see below), whose sum is σ = 600988227840. Its totient is φ = 256481121600.

The previous prime is 400254547129. The next prime is 400254547139. The reversal of 400254547131 is 131745452004.

400254547131 is a `hidden beast` number, since 40 + 0 + 2 + 545 + 4 + 71 + 3 + 1 = 666.

It is not a de Polignac number, because 400254547131 - 2¹ = 400254547129 is a prime.

It is a super-2 number, since 2×400254547131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400254547139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14357356 + ... + 14385206.

It is an arithmetic number, because the mean of its divisors is an integer number (12520588080).

Almost surely, 2^400254547131 is an apocalyptic number.

400254547131 is a deficient number, since it is larger than the sum of its proper divisors (200733680709).

400254547131 is a wasteful number, since it uses less digits than its factorization.

400254547131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28416 (or 28413 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 400254547131 its reverse (131745452004), we get a palindrome (531999999135).

The spelling of 400254547131 in words is "four hundred billion, two hundred fifty-four million, five hundred forty-seven thousand, one hundred thirty-one".