131923489546 has 8 divisors (see below), whose sum is σ = 197896729284. Its totient is φ = 65957913120.

The previous prime is 131923489501. The next prime is 131923489559. The reversal of 131923489546 is 645984329131.

It can be written as a sum of positive squares in 2 ways, for example, as 85337015625 + 46586473921 = 292125^2 + 215839^2 .

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

It is a super-2 number, since 2×131923489546² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1872595 + ... + 1941766.

Almost surely, 2^131923489546 is an apocalyptic number.

131923489546 is a deficient number, since it is larger than the sum of its proper divisors (65973239738).

131923489546 is a wasteful number, since it uses less digits than its factorization.

131923489546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831656.

The product of its digits is 5598720, while the sum is 55.

The spelling of 131923489546 in words is "one hundred thirty-one billion, nine hundred twenty-three million, four hundred eighty-nine thousand, five hundred forty-six".