133511735731 has 8 divisors (see below), whose sum is σ = 145805958000. Its totient is φ = 121243645440.

The previous prime is 133511735723. The next prime is 133511735743. The reversal of 133511735731 is 137537115331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133511735731 - 2³ = 133511735723 is a prime.

It is a super-2 number, since 2×133511735731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133511735761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6522306 + ... + 6542743.

It is an arithmetic number, because the mean of its divisors is an integer number (18225744750).

Almost surely, 2^133511735731 is an apocalyptic number.

133511735731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133511735731 is a deficient number, since it is larger than the sum of its proper divisors (12294222269).

133511735731 is a wasteful number, since it uses less digits than its factorization.

133511735731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13065989.

The product of its digits is 99225, while the sum is 40.

The spelling of 133511735731 in words is "one hundred thirty-three billion, five hundred eleven million, seven hundred thirty-five thousand, seven hundred thirty-one".