133750997 has 8 divisors (see below), whose sum is σ = 134948352. Its totient is φ = 132559200.

The previous prime is 133750993. The next prime is 133750999. The reversal of 133750997 is 799057331.

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 133750997 - 2² = 133750993 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 (133750993) 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, 57497 + ... + 59777.

It is an arithmetic number, because the mean of its divisors is an integer number (16868544).

Almost surely, 2^133750997 is an apocalyptic number.

It is an amenable number.

133750997 is a deficient number, since it is larger than the sum of its proper divisors (1197355).

133750997 is a wasteful number, since it uses less digits than its factorization.

133750997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779.

The product of its (nonzero) digits is 178605, while the sum is 44.

The square root of 133750997 is about 11565.0766102089. The cubic root of 133750997 is about 511.4058315866.

The spelling of 133750997 in words is "one hundred thirty-three million, seven hundred fifty thousand, nine hundred ninety-seven".