133413787 has 4 divisors (see below), whose sum is σ = 143676400. Its totient is φ = 123151176.

The previous prime is 133413781. The next prime is 133413793. The reversal of 133413787 is 787314331.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (133413781) and next prime (133413793).

It is a cyclic number.

It is not a de Polignac number, because 133413787 - 2¹¹ = 133411739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133413781) 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, 5131287 + ... + 5131312.

It is an arithmetic number, because the mean of its divisors is an integer number (35919100).

Almost surely, 2^133413787 is an apocalyptic number.

133413787 is a deficient number, since it is larger than the sum of its proper divisors (10262613).

133413787 is a wasteful number, since it uses less digits than its factorization.

133413787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262612.

The product of its digits is 42336, while the sum is 37.

The square root of 133413787 is about 11550.4886043838. The cubic root of 133413787 is about 510.9756882747.

The spelling of 133413787 in words is "one hundred thirty-three million, four hundred thirteen thousand, seven hundred eighty-seven".