133240420245015 has 64 divisors (see below), whose sum is σ = 239981112961920. Its totient is φ = 71006760732672.

The previous prime is 133240420244993. The next prime is 133240420245019. The reversal of 133240420245015 is 510542024042331.

It is a happy number.

133240420245015 is a `hidden beast` number, since 1 + 3 + 3 + 2 + 404 + 2 + 0 + 245 + 0 + 1 + 5 = 666.

It is not a de Polignac number, because 133240420245015 - 2²⁶ = 133240353136151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133240420245019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9485407 + ... + 18879983.

It is an arithmetic number, because the mean of its divisors is an integer number (3749704890030).

Almost surely, 2^{133240420245015} is an apocalyptic number.

133240420245015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133240420245015 is a deficient number, since it is larger than the sum of its proper divisors (106740692716905).

133240420245015 is an frugal number, since it uses more digits than its factorization.

133240420245015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9395900 (or 9395882 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 133240420245015 its reverse (510542024042331), we get a palindrome (643782444287346).

The spelling of 133240420245015 in words is "one hundred thirty-three trillion, two hundred forty billion, four hundred twenty million, two hundred forty-five thousand, fifteen".