133031141 has 4 divisors (see below), whose sum is σ = 140032800. Its totient is φ = 126029484.

The previous prime is 133031123. The next prime is 133031159. The reversal of 133031141 is 141130331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141130331 = 47 ⋅3002773.

It is an interprime number because it is at equal distance from previous prime (133031123) and next prime (133031159).

It is a cyclic number.

It is not a de Polignac number, because 133031141 - 2⁶ = 133031077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031111) 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, 3500801 + ... + 3500838.

It is an arithmetic number, because the mean of its divisors is an integer number (35008200).

Almost surely, 2^133031141 is an apocalyptic number.

It is an amenable number.

133031141 is a deficient number, since it is larger than the sum of its proper divisors (7001659).

133031141 is an equidigital number, since it uses as much as digits as its factorization.

133031141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7001658.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 133031141 is about 11533.9126492271. The cubic root of 133031141 is about 510.4867082542.

Adding to 133031141 its reverse (141130331), we get a palindrome (274161472).

The spelling of 133031141 in words is "one hundred thirty-three million, thirty-one thousand, one hundred forty-one".