133001995 has 16 divisors (see below), whose sum is σ = 192003840. Its totient is φ = 86400864.

The previous prime is 133001983. The next prime is 133002029. The reversal of 133001995 is 599100331.

It is a cyclic number.

It is not a de Polignac number, because 133001995 - 2¹³ = 132993803 is a prime.

133001995 is a modest number, since divided by 1995 gives 1330 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99337 + ... + 100666.

It is an arithmetic number, because the mean of its divisors is an integer number (12000240).

Almost surely, 2^133001995 is an apocalyptic number.

133001995 is a deficient number, since it is larger than the sum of its proper divisors (59001845).

133001995 is a wasteful number, since it uses less digits than its factorization.

133001995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200034.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 133001995 is about 11532.6490885659. The cubic root of 133001995 is about 510.4494244217.

The spelling of 133001995 in words is "one hundred thirty-three million, one thousand, nine hundred ninety-five".