131413611145 has 8 divisors (see below), whose sum is σ = 157698278856. Its totient is φ = 105129591936.

The previous prime is 131413611097. The next prime is 131413611151. The reversal of 131413611145 is 541116314131.

It can be written as a sum of positive squares in 4 ways, for example, as 57955266121 + 73458345024 = 240739^2 + 271032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131413611145 is a prime.

It is a super-2 number, since 2×131413611145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723669 + ... + 886861.

It is an arithmetic number, because the mean of its divisors is an integer number (19712284857).

Almost surely, 2^131413611145 is an apocalyptic number.

It is an amenable number.

131413611145 is a deficient number, since it is larger than the sum of its proper divisors (26284667711).

131413611145 is a wasteful number, since it uses less digits than its factorization.

131413611145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324251.

The product of its digits is 4320, while the sum is 31.

Adding to 131413611145 its reverse (541116314131), we get a palindrome (672529925276).

The spelling of 131413611145 in words is "one hundred thirty-one billion, four hundred thirteen million, six hundred eleven thousand, one hundred forty-five".