133027405 has 24 divisors (see below), whose sum is σ = 186354432. Its totient is φ = 91161168.

The previous prime is 133027381. The next prime is 133027409. The reversal of 133027405 is 504720331.

It is not a de Polignac number, because 133027405 - 2⁷ = 133027277 is a prime.

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 133027405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133027409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83244 + ... + 84826.

It is an arithmetic number, because the mean of its divisors is an integer number (7764768).

Almost surely, 2^133027405 is an apocalyptic number.

It is an amenable number.

133027405 is a deficient number, since it is larger than the sum of its proper divisors (53327027).

133027405 is an frugal number, since it uses more digits than its factorization.

133027405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 133027405 is about 11533.7506909071. The cubic root of 133027405 is about 510.4819294328.

Adding to 133027405 its reverse (504720331), we get a palindrome (637747736).

The spelling of 133027405 in words is "one hundred thirty-three million, twenty-seven thousand, four hundred five".