133730427 has 8 divisors (see below), whose sum is σ = 179375616. Its totient is φ = 88619432.

The previous prime is 133730423. The next prime is 133730461. The reversal of 133730427 is 724037331.

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 133730427 - 2² = 133730423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133730394 and 133730403.

It is not an unprimeable number, because it can be changed into a prime (133730423) 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, 132963 + ... + 133964.

It is an arithmetic number, because the mean of its divisors is an integer number (22421952).

Almost surely, 2^133730427 is an apocalyptic number.

133730427 is a deficient number, since it is larger than the sum of its proper divisors (45645189).

133730427 is a wasteful number, since it uses less digits than its factorization.

133730427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267097.

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 133730427 is about 11564.1872606768. The cubic root of 133730427 is about 511.3796133215.

Adding to 133730427 its reverse (724037331), we get a palindrome (857767758).

It can be divided in two parts, 1337304 and 27, that added together give a palindrome (1337331).

The spelling of 133730427 in words is "one hundred thirty-three million, seven hundred thirty thousand, four hundred twenty-seven".