133010531 has 8 divisors (see below), whose sum is σ = 134223600. Its totient is φ = 131802912.

The previous prime is 133010503. The next prime is 133010539. The reversal of 133010531 is 135010331.

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

It is a cyclic number.

It is not a de Polignac number, because 133010531 - 2¹⁰ = 133009507 is a prime.

It is a super-2 number, since 2×133010531² = 35383602713803922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133010539) 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, 59276 + ... + 61478.

It is an arithmetic number, because the mean of its divisors is an integer number (16777950).

Almost surely, 2^133010531 is an apocalyptic number.

133010531 is a deficient number, since it is larger than the sum of its proper divisors (1213069).

133010531 is a wasteful number, since it uses less digits than its factorization.

133010531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 133010531 is about 11533.0191623876. The cubic root of 133010531 is about 510.4603443158.

Adding to 133010531 its reverse (135010331), we get a palindrome (268020862).

The spelling of 133010531 in words is "one hundred thirty-three million, ten thousand, five hundred thirty-one".