145132081 has 4 divisors (see below), whose sum is σ = 145211200. Its totient is φ = 145052964.

The previous prime is 145132061. The next prime is 145132121. The reversal of 145132081 is 180231541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145132081 - 2⁷ = 145131953 is a prime.

It is a super-2 number, since 2×145132081² = 42126641870781122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145132061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36741 + ... + 40498.

It is an arithmetic number, because the mean of its divisors is an integer number (36302800).

Almost surely, 2^145132081 is an apocalyptic number.

It is an amenable number.

145132081 is a deficient number, since it is larger than the sum of its proper divisors (79119).

145132081 is an equidigital number, since it uses as much as digits as its factorization.

145132081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79118.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 145132081 is about 12047.0776954413. The cubic root of 145132081 is about 525.5182558825.

The spelling of 145132081 in words is "one hundred forty-five million, one hundred thirty-two thousand, eighty-one".