133345478 has 16 divisors (see below), whose sum is σ = 229487904. Its totient is φ = 56924160.

The previous prime is 133345469. The next prime is 133345481. The reversal of 133345478 is 874543331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14933 + ... + 22128.

It is an arithmetic number, because the mean of its divisors is an integer number (14342994).

Almost surely, 2^133345478 is an apocalyptic number.

133345478 is a deficient number, since it is larger than the sum of its proper divisors (96142426).

133345478 is a wasteful number, since it uses less digits than its factorization.

133345478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37327.

The product of its digits is 120960, while the sum is 38.

The square root of 133345478 is about 11547.5312513108. The cubic root of 133345478 is about 510.8884654125. Note that the first 3 decimals are identical.

The spelling of 133345478 in words is "one hundred thirty-three million, three hundred forty-five thousand, four hundred seventy-eight".