133400194 has 16 divisors (see below), whose sum is σ = 206395776. Its totient is φ = 64630000.

The previous prime is 133400191. The next prime is 133400209. The reversal of 133400194 is 491004331.

It is a happy number.

It is a super-2 number, since 2×133400194² = 35591223518475272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133400191) 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, 2469 + ... + 16519.

It is an arithmetic number, because the mean of its divisors is an integer number (12899736).

Almost surely, 2^133400194 is an apocalyptic number.

133400194 is a deficient number, since it is larger than the sum of its proper divisors (72995582).

133400194 is a wasteful number, since it uses less digits than its factorization.

133400194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14201.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 133400194 is about 11549.9001727288. The cubic root of 133400194 is about 510.9583339253.

The spelling of 133400194 in words is "one hundred thirty-three million, four hundred thousand, one hundred ninety-four".