1201535455547 has 8 divisors (see below), whose sum is σ = 1410296442336. Its totient is φ = 1002052734912.

The previous prime is 1201535455541. The next prime is 1201535455583. The reversal of 1201535455547 is 7455545351021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201535455547 - 2⁴ = 1201535455531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201535455541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2319566258 + ... + 2319566775.

It is an arithmetic number, because the mean of its divisors is an integer number (176287055292).

Almost surely, 2^{1201535455547} is an apocalyptic number.

1201535455547 is a deficient number, since it is larger than the sum of its proper divisors (208760986789).

1201535455547 is an equidigital number, since it uses as much as digits as its factorization.

1201535455547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639133077.

The product of its (nonzero) digits is 2100000, while the sum is 47.

The spelling of 1201535455547 in words is "one trillion, two hundred one billion, five hundred thirty-five million, four hundred fifty-five thousand, five hundred forty-seven".