133463161 has 4 divisors (see below), whose sum is σ = 143729572. Its totient is φ = 123196752.

The previous prime is 133463119. The next prime is 133463179. The reversal of 133463161 is 161364331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58813561 + 74649600 = 7669^2 + 8640^2 .

It is a cyclic number.

It is not a de Polignac number, because 133463161 - 2¹¹ = 133461113 is a prime.

It is a super-2 number, since 2×133463161² = 35624830688223842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133466161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5133186 + ... + 5133211.

It is an arithmetic number, because the mean of its divisors is an integer number (35932393).

Almost surely, 2^133463161 is an apocalyptic number.

It is an amenable number.

133463161 is a deficient number, since it is larger than the sum of its proper divisors (10266411).

133463161 is a wasteful number, since it uses less digits than its factorization.

133463161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266410.

The product of its digits is 3888, while the sum is 28.

The square root of 133463161 is about 11552.6257188572. The cubic root of 133463161 is about 511.0387147494.

The spelling of 133463161 in words is "one hundred thirty-three million, four hundred sixty-three thousand, one hundred sixty-one".