133161264 has 30 divisors (see below), whose sum is σ = 372666996. Its totient is φ = 44387040.

The previous prime is 133161263. The next prime is 133161269. The reversal of 133161264 is 462161331.

133161264 is a `hidden beast` number, since 13 + 31 + 612 + 6 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (133161263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462222 + ... + 462509.

Almost surely, 2^133161264 is an apocalyptic number.

It is an amenable number.

133161264 is an abundant number, since it is smaller than the sum of its proper divisors (239505732).

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

133161264 is a wasteful number, since it uses less digits than its factorization.

133161264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924745 (or 924736 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 133161264 is about 11539.5521576879. The cubic root of 133161264 is about 510.6530964027.

The spelling of 133161264 in words is "one hundred thirty-three million, one hundred sixty-one thousand, two hundred sixty-four".