345636056131 has 4 divisors (see below), whose sum is σ = 353674103992. Its totient is φ = 337598008272.

The previous prime is 345636056119. The next prime is 345636056137. The reversal of 345636056131 is 131650636543.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345636056131 - 2³³ = 337046121539 is a prime.

It is a super-2 number, since 2×345636056131² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 8038047817 = 345636056131 / (3 + 4 + 5 + 6 + 3 + 6 + 0 + 5 + 6 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345636056137) 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 3 ways as a sum of consecutive naturals, for example, 4019023866 + ... + 4019023951.

It is an arithmetic number, because the mean of its divisors is an integer number (88418525998).

Almost surely, 2^345636056131 is an apocalyptic number.

345636056131 is a deficient number, since it is larger than the sum of its proper divisors (8038047861).

345636056131 is an equidigital number, since it uses as much as digits as its factorization.

345636056131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038047860.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 345636056131 in words is "three hundred forty-five billion, six hundred thirty-six million, fifty-six thousand, one hundred thirty-one".