133201061 has 6 divisors (see below), whose sum is σ = 154948230. Its totient is φ = 114172296.

The previous prime is 133201051. The next prime is 133201067. The reversal of 133201061 is 160102331.

It can be written as a sum of positive squares in only one way, i.e., 90364036 + 42837025 = 9506^2 + 6545^2 .

It is not a de Polignac number, because 133201061 - 2⁶ = 133200997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133201067) 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, 1359146 + ... + 1359243.

It is an arithmetic number, because the mean of its divisors is an integer number (25824705).

Almost surely, 2^133201061 is an apocalyptic number.

It is an amenable number.

133201061 is a deficient number, since it is larger than the sum of its proper divisors (21747169).

133201061 is an equidigital number, since it uses as much as digits as its factorization.

133201061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718403 (or 2718396 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 133201061 is about 11541.2764025475. The cubic root of 133201061 is about 510.7039631399.

Adding to 133201061 its reverse (160102331), we get a palindrome (293303392).

The spelling of 133201061 in words is "one hundred thirty-three million, two hundred one thousand, sixty-one".