133731029 has 8 divisors (see below), whose sum is σ = 134652672. Its totient is φ = 132813040.

The previous prime is 133731023. The next prime is 133731041. The reversal of 133731029 is 920137331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133731029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133730992 and 133731010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133731023) 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, 120692 + ... + 121794.

It is an arithmetic number, because the mean of its divisors is an integer number (16831584).

Almost surely, 2^133731029 is an apocalyptic number.

It is an amenable number.

133731029 is a deficient number, since it is larger than the sum of its proper divisors (921643).

133731029 is a wasteful number, since it uses less digits than its factorization.

133731029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 133731029 is about 11564.2132892817. The cubic root of 133731029 is about 511.3803806614.

The spelling of 133731029 in words is "one hundred thirty-three million, seven hundred thirty-one thousand, twenty-nine".