1154540320542 has 36 divisors (see below), whose sum is σ = 2909912850936. Its totient is φ = 329868662760.

The previous prime is 1154540320457. The next prime is 1154540320573. The reversal of 1154540320542 is 2450230454511.

1154540320542 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 5 + 403 + 205 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1154540320497 and 1154540320506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 654500434 + ... + 654502197.

It is an arithmetic number, because the mean of its divisors is an integer number (80830912526).

Almost surely, 2^{1154540320542} is an apocalyptic number.

1154540320542 is an abundant number, since it is smaller than the sum of its proper divisors (1755372530394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1154540320542 is a wasteful number, since it uses less digits than its factorization.

1154540320542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309002653 (or 1309002643 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 1154540320542 in words is "one trillion, one hundred fifty-four billion, five hundred forty million, three hundred twenty thousand, five hundred forty-two".