133762231 has 4 divisors (see below), whose sum is σ = 133894264. Its totient is φ = 133630200.

The previous prime is 133762229. The next prime is 133762243. The reversal of 133762231 is 132267331.

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

It is a cyclic number.

It is not a de Polignac number, because 133762231 - 2¹ = 133762229 is a prime.

It is a super-2 number, since 2×133762231² = 35784668884194722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133762231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133762931) 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, 64485 + ... + 66526.

It is an arithmetic number, because the mean of its divisors is an integer number (33473566).

Almost surely, 2^133762231 is an apocalyptic number.

133762231 is a deficient number, since it is larger than the sum of its proper divisors (132033).

133762231 is a wasteful number, since it uses less digits than its factorization.

133762231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132032.

The product of its digits is 4536, while the sum is 28.

The square root of 133762231 is about 11565.5622863741. The cubic root of 133762231 is about 511.4201491678.

The spelling of 133762231 in words is "one hundred thirty-three million, seven hundred sixty-two thousand, two hundred thirty-one".