133772790 has 32 divisors (see below), whose sum is σ = 323904096. Its totient is φ = 35356160.

The previous prime is 133772789. The next prime is 133772801. The reversal of 133772790 is 97277331.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16341 + ... + 23120.

It is an arithmetic number, because the mean of its divisors is an integer number (10122003).

Almost surely, 2^133772790 is an apocalyptic number.

133772790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133772790 is an abundant number, since it is smaller than the sum of its proper divisors (190131306).

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

133772790 is a wasteful number, since it uses less digits than its factorization.

133772790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39584.

The product of its (nonzero) digits is 55566, while the sum is 39.

The square root of 133772790 is about 11566.0187618731. The cubic root of 133772790 is about 511.4336057398.

The spelling of 133772790 in words is "one hundred thirty-three million, seven hundred seventy-two thousand, seven hundred ninety".