133411431 has 8 divisors (see below), whose sum is σ = 185616000. Its totient is φ = 85073912.

The previous prime is 133411429. The next prime is 133411451. The reversal of 133411431 is 134114331.

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 133411431 - 2¹ = 133411429 is a prime.

It is a super-2 number, since 2×133411431² = 35597219842935522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133411398 and 133411407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133411451) 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, 966681 + ... + 966818.

It is an arithmetic number, because the mean of its divisors is an integer number (23202000).

Almost surely, 2^133411431 is an apocalyptic number.

133411431 is a deficient number, since it is larger than the sum of its proper divisors (52204569).

133411431 is a wasteful number, since it uses less digits than its factorization.

133411431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933525.

The product of its digits is 432, while the sum is 21.

The square root of 133411431 is about 11550.3866169059. The cubic root of 133411431 is about 510.9726804251.

Adding to 133411431 its reverse (134114331), we get a palindrome (267525762).

The spelling of 133411431 in words is "one hundred thirty-three million, four hundred eleven thousand, four hundred thirty-one".