131970647517554 has 4 divisors (see below), whose sum is σ = 197955971276334. Its totient is φ = 65985323758776.

The previous prime is 131970647517439. The next prime is 131970647517649. The reversal of 131970647517554 is 455715746079131.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 95627413271329 + 36343234246225 = 9778927^2 + 6028535^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32992661879387 + ... + 32992661879390.

Almost surely, 2^{131970647517554} is an apocalyptic number.

131970647517554 is a deficient number, since it is larger than the sum of its proper divisors (65985323758780).

131970647517554 is an equidigital number, since it uses as much as digits as its factorization.

131970647517554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65985323758779.

The product of its (nonzero) digits is 111132000, while the sum is 65.

The spelling of 131970647517554 in words is "one hundred thirty-one trillion, nine hundred seventy billion, six hundred forty-seven million, five hundred seventeen thousand, five hundred fifty-four".