133151995 has 8 divisors (see below), whose sum is σ = 160175520. Its totient is φ = 106259520.

The previous prime is 133151983. The next prime is 133151999. The reversal of 133151995 is 599151331.

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

It is not a de Polignac number, because 133151995 - 2¹⁵ = 133119227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133151999) 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, 30511 + ... + 34600.

It is an arithmetic number, because the mean of its divisors is an integer number (20021940).

Almost surely, 2^133151995 is an apocalyptic number.

133151995 is a deficient number, since it is larger than the sum of its proper divisors (27023525).

133151995 is an equidigital number, since it uses as much as digits as its factorization.

133151995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65525.

The product of its digits is 18225, while the sum is 37.

The square root of 133151995 is about 11539.1505319932. The cubic root of 133151995 is about 510.6412477283.

The spelling of 133151995 in words is "one hundred thirty-three million, one hundred fifty-one thousand, nine hundred ninety-five".