130405155752 has 8 divisors (see below), whose sum is σ = 244509667050. Its totient is φ = 65202577872.

The previous prime is 130405155701. The next prime is 130405155767. The reversal of 130405155752 is 257551504031.

It can be written as a sum of positive squares in only one way, i.e., 74645889796 + 55759265956 = 273214^2 + 236134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8150322227 + ... + 8150322242.

Almost surely, 2^130405155752 is an apocalyptic number.

It is an amenable number.

130405155752 is a deficient number, since it is larger than the sum of its proper divisors (114104511298).

130405155752 is a wasteful number, since it uses less digits than its factorization.

130405155752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16300644475 (or 16300644471 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 38.

Adding to 130405155752 its reverse (257551504031), we get a palindrome (387956659783).

The spelling of 130405155752 in words is "one hundred thirty billion, four hundred five million, one hundred fifty-five thousand, seven hundred fifty-two".