133155001240 has 64 divisors (see below), whose sum is σ = 329078764800. Its totient is φ = 48264872832.

The previous prime is 133155001223. The next prime is 133155001247. The reversal of 133155001240 is 42100551331.

It is a happy number.

133155001240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133155001247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3791302 + ... + 3826261.

It is an arithmetic number, because the mean of its divisors is an integer number (5141855700).

Almost surely, 2^133155001240 is an apocalyptic number.

133155001240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133155001240 is an abundant number, since it is smaller than the sum of its proper divisors (195923763560).

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

133155001240 is a wasteful number, since it uses less digits than its factorization.

133155001240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617616 (or 7617612 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 133155001240 its reverse (42100551331), we get a palindrome (175255552571).

The spelling of 133155001240 in words is "one hundred thirty-three billion, one hundred fifty-five million, one thousand, two hundred forty".