131554620355 has 4 divisors (see below), whose sum is σ = 157865544432. Its totient is φ = 105243696280.

The previous prime is 131554620349. The next prime is 131554620371. The reversal of 131554620355 is 553026455131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553026455131 = 10627 ⋅52039753.

It is not a de Polignac number, because 131554620355 - 2²¹ = 131552523203 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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, 13155462031 + ... + 13155462040.

It is an arithmetic number, because the mean of its divisors is an integer number (39466386108).

Almost surely, 2^131554620355 is an apocalyptic number.

131554620355 is a deficient number, since it is larger than the sum of its proper divisors (26310924077).

131554620355 is an equidigital number, since it uses as much as digits as its factorization.

131554620355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26310924076.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 131554620355 in words is "one hundred thirty-one billion, five hundred fifty-four million, six hundred twenty thousand, three hundred fifty-five".