133731079 has 8 divisors (see below), whose sum is σ = 134818560. Its totient is φ = 132647736.

The previous prime is 133731077. The next prime is 133731083. The reversal of 133731079 is 970137331.

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 133731079 - 2¹ = 133731077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133731077) 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, 100114 + ... + 101440.

It is an arithmetic number, because the mean of its divisors is an integer number (16852320).

Almost surely, 2^133731079 is an apocalyptic number.

133731079 is a deficient number, since it is larger than the sum of its proper divisors (1087481).

133731079 is a wasteful number, since it uses less digits than its factorization.

133731079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069.

The product of its (nonzero) digits is 11907, while the sum is 34.

The square root of 133731079 is about 11564.2154511233. The cubic root of 133731079 is about 511.3804443938.

The spelling of 133731079 in words is "one hundred thirty-three million, seven hundred thirty-one thousand, seventy-nine".