133353231 has 8 divisors (see below), whose sum is σ = 193968384. Its totient is φ = 80820120.

The previous prime is 133353211. The next prime is 133353271. The reversal of 133353231 is 132353331.

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

It is not a de Polignac number, because 133353231 - 2⁹ = 133352719 is a prime.

It is a super-2 number, since 2×133353231² = 35566168436278722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133353211) 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, 2020471 + ... + 2020536.

It is an arithmetic number, because the mean of its divisors is an integer number (24246048).

Almost surely, 2^133353231 is an apocalyptic number.

133353231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133353231 is a deficient number, since it is larger than the sum of its proper divisors (60615153).

133353231 is a wasteful number, since it uses less digits than its factorization.

133353231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041021.

The product of its digits is 2430, while the sum is 24.

The square root of 133353231 is about 11547.8669458909. The cubic root of 133353231 is about 510.8983666144.

The spelling of 133353231 in words is "one hundred thirty-three million, three hundred fifty-three thousand, two hundred thirty-one".