133401560 has 32 divisors (see below), whose sum is σ = 300566160. Its totient is φ = 53287296.

The previous prime is 133401553. The next prime is 133401563. The reversal of 133401560 is 65104331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133401563) 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 7 ways as a sum of consecutive naturals, for example, 34442 + ... + 38118.

Almost surely, 2^133401560 is an apocalyptic number.

133401560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133401560 is an abundant number, since it is smaller than the sum of its proper divisors (167164600).

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

133401560 is a wasteful number, since it uses less digits than its factorization.

133401560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595 (or 4591 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 133401560 is about 11549.9593072876. The cubic root of 133401560 is about 510.9600779675.

Adding to 133401560 its reverse (65104331), we get a palindrome (198505891).

The spelling of 133401560 in words is "one hundred thirty-three million, four hundred one thousand, five hundred sixty".