133264783 has 16 divisors (see below), whose sum is σ = 143548416. Its totient is φ = 123409440.

The previous prime is 133264777. The next prime is 133264793. The reversal of 133264783 is 387462331.

It is a cyclic number.

It is not a de Polignac number, because 133264783 - 2¹⁷ = 133133711 is a prime.

It is a super-3 number, since 3×133264783³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133264723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125073 + ... + 126133.

It is an arithmetic number, because the mean of its divisors is an integer number (8971776).

Almost surely, 2^133264783 is an apocalyptic number.

133264783 is a deficient number, since it is larger than the sum of its proper divisors (10283633).

133264783 is a wasteful number, since it uses less digits than its factorization.

133264783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254.

The product of its digits is 72576, while the sum is 37.

The square root of 133264783 is about 11544.0366856659. The cubic root of 133264783 is about 510.7853886422.

The spelling of 133264783 in words is "one hundred thirty-three million, two hundred sixty-four thousand, seven hundred eighty-three".