10133531 has 4 divisors (see below), whose sum is σ = 10139952. Its totient is φ = 10127112.

The previous prime is 10133527. The next prime is 10133533. The reversal of 10133531 is 13533101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10133531 - 2² = 10133527 is a prime.

It is a super-2 number, since 2×10133531² = 205376901055922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10133533) 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, 986 + ... + 4608.

It is an arithmetic number, because the mean of its divisors is an integer number (2534988).

Almost surely, 2^10133531 is an apocalyptic number.

10133531 is a deficient number, since it is larger than the sum of its proper divisors (6421).

10133531 is an equidigital number, since it uses as much as digits as its factorization.

10133531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420.

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

The square root of 10133531 is about 3183.3207504114. The cubic root of 10133531 is about 216.3981781491.

Adding to 10133531 its reverse (13533101), we get a palindrome (23666632).

The spelling of 10133531 in words is "ten million, one hundred thirty-three thousand, five hundred thirty-one".