133406495 has 4 divisors (see below), whose sum is σ = 160087800. Its totient is φ = 106725192.

The previous prime is 133406491. The next prime is 133406519. The reversal of 133406495 is 594604331.

It is a happy number.

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 133406495 - 2² = 133406491 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133406491) 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, 13340645 + ... + 13340654.

It is an arithmetic number, because the mean of its divisors is an integer number (40021950).

Almost surely, 2^133406495 is an apocalyptic number.

133406495 is a deficient number, since it is larger than the sum of its proper divisors (26681305).

133406495 is an equidigital number, since it uses as much as digits as its factorization.

133406495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26681304.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 133406495 is about 11550.1729424282. The cubic root of 133406495 is about 510.9663786356.

The spelling of 133406495 in words is "one hundred thirty-three million, four hundred six thousand, four hundred ninety-five".