133421654 has 8 divisors (see below), whose sum is σ = 200196048. Its totient is φ = 66689640.

The previous prime is 133421621. The next prime is 133421671. The reversal of 133421654 is 456124331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977 + ... + 16364.

It is an arithmetic number, because the mean of its divisors is an integer number (25024506).

Almost surely, 2^133421654 is an apocalyptic number.

133421654 is a deficient number, since it is larger than the sum of its proper divisors (66774394).

133421654 is a wasteful number, since it uses less digits than its factorization.

133421654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21190.

The product of its digits is 8640, while the sum is 29.

The square root of 133421654 is about 11550.8291477279. The cubic root of 133421654 is about 510.9857316313.

Adding to 133421654 its reverse (456124331), we get a palindrome (589545985).

The spelling of 133421654 in words is "one hundred thirty-three million, four hundred twenty-one thousand, six hundred fifty-four".