133006361 has 4 divisors (see below), whose sum is σ = 133125300. Its totient is φ = 132887424.

The previous prime is 133006339. The next prime is 133006373. The reversal of 133006361 is 163600331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163600331 = 137 ⋅1194163.

It can be written as a sum of positive squares in 2 ways, for example, as 67897600 + 65108761 = 8240^2 + 8069^2 .

It is a cyclic number.

It is not a de Polignac number, because 133006361 - 2⁶ = 133006297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133006301) 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, 57776 + ... + 60033.

It is an arithmetic number, because the mean of its divisors is an integer number (33281325).

Almost surely, 2^133006361 is an apocalyptic number.

It is an amenable number.

133006361 is a deficient number, since it is larger than the sum of its proper divisors (118939).

133006361 is a wasteful number, since it uses less digits than its factorization.

133006361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118938.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 133006361 is about 11532.8383756992. The cubic root of 133006361 is about 510.4550097961.

Adding to 133006361 its reverse (163600331), we get a palindrome (296606692).

The spelling of 133006361 in words is "one hundred thirty-three million, six thousand, three hundred sixty-one".