133900585 has 48 divisors (see below), whose sum is σ = 213219216. Its totient is φ = 79736832.

The previous prime is 133900583. The next prime is 133900597. The reversal of 133900585 is 585009331.

It can be written as a sum of positive squares in 8 ways, for example, as 12544 + 133888041 = 112^2 + 11571^2 .

It is not a de Polignac number, because 133900585 - 2¹ = 133900583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133900585.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133900583) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52909 + ... + 55381.

It is an arithmetic number, because the mean of its divisors is an integer number (4442067).

Almost surely, 2^133900585 is an apocalyptic number.

It is an amenable number.

133900585 is a deficient number, since it is larger than the sum of its proper divisors (79318631).

133900585 is a wasteful number, since it uses less digits than its factorization.

133900585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522 (or 2515 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 133900585 is about 11571.5420320716. The cubic root of 133900585 is about 511.5964137767.

The spelling of 133900585 in words is "one hundred thirty-three million, nine hundred thousand, five hundred eighty-five".