133548394 has 16 divisors (see below), whose sum is σ = 231840000. Its totient is φ = 56510064.

The previous prime is 133548347. The next prime is 133548407. The reversal of 133548394 is 493845331.

It is a happy 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, 59269 + ... + 61480.

It is an arithmetic number, because the mean of its divisors is an integer number (14490000).

Almost surely, 2^133548394 is an apocalyptic number.

133548394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

133548394 is a deficient number, since it is larger than the sum of its proper divisors (98291606).

133548394 is a wasteful number, since it uses less digits than its factorization.

133548394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120837.

The product of its digits is 155520, while the sum is 40.

The square root of 133548394 is about 11556.3140317317. The cubic root of 133548394 is about 511.1474790792.

It can be divided in two parts, 1335 and 48394, that added together give a square (49729 = 223²).

The spelling of 133548394 in words is "one hundred thirty-three million, five hundred forty-eight thousand, three hundred ninety-four".