133401340 has 12 divisors (see below), whose sum is σ = 280142856. Its totient is φ = 53360528.

The previous prime is 133401313. The next prime is 133401341. The reversal of 133401340 is 43104331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133401341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3335014 + ... + 3335053.

It is an arithmetic number, because the mean of its divisors is an integer number (23345238).

Almost surely, 2^133401340 is an apocalyptic number.

133401340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133401340 is an abundant number, since it is smaller than the sum of its proper divisors (146741516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133401340 is a wasteful number, since it uses less digits than its factorization.

133401340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670076 (or 6670074 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133401340 is about 11549.9497834406. The cubic root of 133401340 is about 510.9597970830.

Adding to 133401340 its reverse (43104331), we get a palindrome (176505671).

The spelling of 133401340 in words is "one hundred thirty-three million, four hundred one thousand, three hundred forty".