133462231 has 6 divisors (see below), whose sum is σ = 155252040. Its totient is φ = 114396156.

The previous prime is 133462211. The next prime is 133462237. The reversal of 133462231 is 132264331.

It is a de Polignac number, because none of the positive numbers 2^k-133462231 is a prime.

It is a super-2 number, since 2×133462231² = 35624334206994722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133462196 and 133462205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133462237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1361811 + ... + 1361908.

It is an arithmetic number, because the mean of its divisors is an integer number (25875340).

Almost surely, 2^133462231 is an apocalyptic number.

133462231 is a deficient number, since it is larger than the sum of its proper divisors (21789809).

133462231 is an equidigital number, since it uses as much as digits as its factorization.

133462231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723733 (or 2723726 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 133462231 is about 11552.5854681972. The cubic root of 133462231 is about 511.0375277374.

The spelling of 133462231 in words is "one hundred thirty-three million, four hundred sixty-two thousand, two hundred thirty-one".