133242031544 has 8 divisors (see below), whose sum is σ = 249828809160. Its totient is φ = 66621015768.

The previous prime is 133242031543. The next prime is 133242031553. The reversal of 133242031544 is 445130242331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 133242031544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133242031541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8327626964 + ... + 8327626979.

It is an arithmetic number, because the mean of its divisors is an integer number (31228601145).

Almost surely, 2^133242031544 is an apocalyptic number.

It is an amenable number.

133242031544 is a deficient number, since it is larger than the sum of its proper divisors (116586777616).

133242031544 is a wasteful number, since it uses less digits than its factorization.

133242031544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16655253949 (or 16655253945 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 133242031544 its reverse (445130242331), we get a palindrome (578372273875).

The spelling of 133242031544 in words is "one hundred thirty-three billion, two hundred forty-two million, thirty-one thousand, five hundred forty-four".