133156195 has 8 divisors (see below), whose sum is σ = 159999840. Its totient is φ = 106383360.

The previous prime is 133156183. The next prime is 133156213. The reversal of 133156195 is 591651331.

It is a happy number.

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

It is not a de Polignac number, because 133156195 - 2¹³ = 133148003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133156195.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13471 + ... + 21160.

It is an arithmetic number, because the mean of its divisors is an integer number (19999980).

Almost surely, 2^133156195 is an apocalyptic number.

133156195 is a deficient number, since it is larger than the sum of its proper divisors (26843645).

133156195 is an equidigital number, since it uses as much as digits as its factorization.

133156195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35405.

The product of its digits is 12150, while the sum is 34.

The square root of 133156195 is about 11539.3325196911. The cubic root of 133156195 is about 510.6466167070.

The spelling of 133156195 in words is "one hundred thirty-three million, one hundred fifty-six thousand, one hundred ninety-five".