133698494 has 16 divisors (see below), whose sum is σ = 211921920. Its totient is φ = 63131640.

The previous prime is 133698463. The next prime is 133698527. The reversal of 133698494 is 494896331.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14762 + ... + 22029.

It is an arithmetic number, because the mean of its divisors is an integer number (13245120).

Almost surely, 2^133698494 is an apocalyptic number.

133698494 is a deficient number, since it is larger than the sum of its proper divisors (78223426).

133698494 is a wasteful number, since it uses less digits than its factorization.

133698494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36895.

The product of its digits is 559872, while the sum is 47.

The square root of 133698494 is about 11562.8064932351. The cubic root of 133698494 is about 511.3389065915.

The spelling of 133698494 in words is "one hundred thirty-three million, six hundred ninety-eight thousand, four hundred ninety-four".