133435740731 has 8 divisors (see below), whose sum is σ = 138255751200. Its totient is φ = 128630315520.

The previous prime is 133435740671. The next prime is 133435740743. The reversal of 133435740731 is 137047534331.

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 133435740731 - 2⁶ = 133435740667 is a prime.

It is a super-2 number, since 2×133435740731² (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 (133435740751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3627686 + ... + 3664283.

It is an arithmetic number, because the mean of its divisors is an integer number (17281968900).

Almost surely, 2^133435740731 is an apocalyptic number.

133435740731 is a deficient number, since it is larger than the sum of its proper divisors (4820010469).

133435740731 is an equidigital number, since it uses as much as digits as its factorization.

133435740731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292629.

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 133435740731 in words is "one hundred thirty-three billion, four hundred thirty-five million, seven hundred forty thousand, seven hundred thirty-one".