133226031 has 8 divisors (see below), whose sum is σ = 178343424. Its totient is φ = 88463000.

The previous prime is 133225999. The next prime is 133226053. The reversal of 133226031 is 130622331.

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 133226031 - 2⁵ = 133225999 is a prime.

It is a super-2 number, since 2×133226031² = 35498350672025922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133225989 and 133226007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133226131) 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, 87711 + ... + 89216.

It is an arithmetic number, because the mean of its divisors is an integer number (22292928).

Almost surely, 2^133226031 is an apocalyptic number.

133226031 is a deficient number, since it is larger than the sum of its proper divisors (45117393).

133226031 is a wasteful number, since it uses less digits than its factorization.

133226031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177181.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 133226031 is about 11542.3581212853. The cubic root of 133226031 is about 510.7358734993.

Adding to 133226031 its reverse (130622331), we get a palindrome (263848362).

The spelling of 133226031 in words is "one hundred thirty-three million, two hundred twenty-six thousand, thirty-one".