133400201 has 6 divisors (see below), whose sum is σ = 146630106. Its totient is φ = 121272800.

The previous prime is 133400191. The next prime is 133400209. The reversal of 133400201 is 102004331.

It can be written as a sum of positive squares in only one way, i.e., 124902976 + 8497225 = 11176^2 + 2915^2 .

It is not a de Polignac number, because 133400201 - 2²² = 129205897 is a prime.

It is a super-2 number, since 2×133400201² = 35591227253680802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133400209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 551120 + ... + 551361.

It is an arithmetic number, because the mean of its divisors is an integer number (24438351).

Almost surely, 2^133400201 is an apocalyptic number.

133400201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133400201 is a deficient number, since it is larger than the sum of its proper divisors (13229905).

133400201 is a wasteful number, since it uses less digits than its factorization.

133400201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102503 (or 1102492 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 133400201 is about 11549.9004757617. The cubic root of 133400201 is about 510.9583428625.

Adding to 133400201 its reverse (102004331), we get a palindrome (235404532).

The spelling of 133400201 in words is "one hundred thirty-three million, four hundred thousand, two hundred one".