133401088 has 20 divisors (see below), whose sum is σ = 266542650. Its totient is φ = 66700288.

The previous prime is 133401077. The next prime is 133401089. The reversal of 133401088 is 880104331.

It can be written as a sum of positive squares in only one way, i.e., 102576384 + 30824704 = 10128^2 + 5552^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (133401089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129763 + ... + 130786.

Almost surely, 2^133401088 is an apocalyptic number.

It is an amenable number.

133401088 is a deficient number, since it is larger than the sum of its proper divisors (133141562).

133401088 is an frugal number, since it uses more digits than its factorization.

133401088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260567 (or 260551 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 133401088 is about 11549.9388742971. The cubic root of 133401088 is about 510.9594753422.

The spelling of 133401088 in words is "one hundred thirty-three million, four hundred one thousand, eighty-eight".