131155101404452 has 6 divisors (see below), whose sum is σ = 229521427457798. Its totient is φ = 65577550702224.

The previous prime is 131155101404449. The next prime is 131155101404477. The reversal of 131155101404452 is 254404101551131.

It can be written as a sum of positive squares in only one way, i.e., 82737106848036 + 48417994556416 = 9095994^2 + 6958304^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16394387675553 + ... + 16394387675560.

Almost surely, 2^{131155101404452} is an apocalyptic number.

It is an amenable number.

131155101404452 is a deficient number, since it is larger than the sum of its proper divisors (98366326053346).

131155101404452 is a wasteful number, since it uses less digits than its factorization.

131155101404452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32788775351117 (or 32788775351115 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 131155101404452 its reverse (254404101551131), we get a palindrome (385559202955583).

The spelling of 131155101404452 in words is "one hundred thirty-one trillion, one hundred fifty-five billion, one hundred one million, four hundred four thousand, four hundred fifty-two".