134540194 has 4 divisors (see below), whose sum is σ = 201810294. Its totient is φ = 67270096.

The previous prime is 134540191. The next prime is 134540201. The reversal of 134540194 is 491045431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 491045431 = 997 ⋅492523.

It can be written as a sum of positive squares in only one way, i.e., 133702969 + 837225 = 11563^2 + 915^2 .

It is not an unprimeable number, because it can be changed into a prime (134540191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33635047 + ... + 33635050.

Almost surely, 2^134540194 is an apocalyptic number.

134540194 is a deficient number, since it is larger than the sum of its proper divisors (67270100).

134540194 is an equidigital number, since it uses as much as digits as its factorization.

134540194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67270099.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 134540194 is about 11599.1462616867. The cubic root of 134540194 is about 512.4097087813.

The spelling of 134540194 in words is "one hundred thirty-four million, five hundred forty thousand, one hundred ninety-four".