133253101 has 4 divisors (see below), whose sum is σ = 133410172. Its totient is φ = 133096032.

The previous prime is 133253083. The next prime is 133253111. The reversal of 133253101 is 101352331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101352331 = 2729 ⋅37139.

It can be written as a sum of positive squares in 2 ways, for example, as 13875625 + 119377476 = 3725^2 + 10926^2 .

It is a cyclic number.

It is not a de Polignac number, because 133253101 - 2²¹ = 131155949 is a prime.

It is a super-2 number, since 2×133253101² = 35512777852232402, which contains 22 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 (133253111) 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, 77256 + ... + 78961.

It is an arithmetic number, because the mean of its divisors is an integer number (33352543).

Almost surely, 2^133253101 is an apocalyptic number.

It is an amenable number.

133253101 is a deficient number, since it is larger than the sum of its proper divisors (157071).

133253101 is an equidigital number, since it uses as much as digits as its factorization.

133253101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157070.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 133253101 is about 11543.5306990539. The cubic root of 133253101 is about 510.7704630454.

The spelling of 133253101 in words is "one hundred thirty-three million, two hundred fifty-three thousand, one hundred one".