132654144236561 has 4 divisors (see below), whose sum is σ = 132654291789492. Its totient is φ = 132653996683632.

The previous prime is 132654144236461. The next prime is 132654144236563. The reversal of 132654144236561 is 165632441456231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 791272516225 + 131862871720336 = 889535^2 + 11483156^2 .

It is a cyclic number.

It is not a de Polignac number, because 132654144236561 - 2³⁸ = 132379266329617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132654144236563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72419606 + ... + 74228751.

It is an arithmetic number, because the mean of its divisors is an integer number (33163572947373).

Almost surely, 2^{132654144236561} is an apocalyptic number.

It is an amenable number.

132654144236561 is a deficient number, since it is larger than the sum of its proper divisors (147552931).

132654144236561 is an equidigital number, since it uses as much as digits as its factorization.

132654144236561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147552930.

The product of its digits is 12441600, while the sum is 53.

The spelling of 132654144236561 in words is "one hundred thirty-two trillion, six hundred fifty-four billion, one hundred forty-four million, two hundred thirty-six thousand, five hundred sixty-one".