133145512542 has 72 divisors (see below), whose sum is σ = 344650878936. Its totient is φ = 37013415264.

The previous prime is 133145512531. The next prime is 133145512553. The reversal of 133145512542 is 245215541331.

133145512542 is a `hidden beast` number, since 1 + 33 + 14 + 551 + 25 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (133145512531) and next prime (133145512553).

It is a junction number, because it is equal to n+sod(n) for n = 133145512497 and 133145512506.

It is a congruent 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 35 ways as a sum of consecutive naturals, for example, 2007348 + ... + 2072615.

It is an arithmetic number, because the mean of its divisors is an integer number (4786817763).

Almost surely, 2^133145512542 is an apocalyptic number.

133145512542 is an abundant number, since it is smaller than the sum of its proper divisors (211505366394).

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

133145512542 is a wasteful number, since it uses less digits than its factorization.

133145512542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080022 (or 4080012 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 133145512542 in words is "one hundred thirty-three billion, one hundred forty-five million, five hundred twelve thousand, five hundred forty-two".