133343401 has 4 divisors (see below), whose sum is σ = 134950032. Its totient is φ = 131736772.

The previous prime is 133343347. The next prime is 133343417. The reversal of 133343401 is 104343331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133343401 - 2²¹ = 131246249 is a prime.

It is a super-3 number, since 3×133343401³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (133343471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803191 + ... + 803356.

It is an arithmetic number, because the mean of its divisors is an integer number (33737508).

Almost surely, 2^133343401 is an apocalyptic number.

It is an amenable number.

133343401 is a deficient number, since it is larger than the sum of its proper divisors (1606631).

133343401 is an equidigital number, since it uses as much as digits as its factorization.

133343401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606630.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 133343401 is about 11547.4413183181. The cubic root of 133343401 is about 510.8858128520.

Adding to 133343401 its reverse (104343331), we get a palindrome (237686732).

The spelling of 133343401 in words is "one hundred thirty-three million, three hundred forty-three thousand, four hundred one".