133022031 has 4 divisors (see below), whose sum is σ = 177362712. Its totient is φ = 88681352.

The previous prime is 133022003. The next prime is 133022053. The reversal of 133022031 is 130220331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133022031 is a prime.

It is a super-2 number, since 2×133022031² = 35389721462729922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133022031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133022431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22170336 + ... + 22170341.

It is an arithmetic number, because the mean of its divisors is an integer number (44340678).

Almost surely, 2^133022031 is an apocalyptic number.

133022031 is a deficient number, since it is larger than the sum of its proper divisors (44340681).

133022031 is an equidigital number, since it uses as much as digits as its factorization.

133022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44340680.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 133022031 is about 11533.5177201060. The cubic root of 133022031 is about 510.4750552432.

Adding to 133022031 its reverse (130220331), we get a palindrome (263242362).

The spelling of 133022031 in words is "one hundred thirty-three million, twenty-two thousand, thirty-one".