145052241 has 8 divisors (see below), whose sum is σ = 196052640. Its totient is φ = 95376672.

The previous prime is 145052231. The next prime is 145052249. The reversal of 145052241 is 142250541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145052241 - 2⁵ = 145052209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145052249) 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 7 ways as a sum of consecutive naturals, for example, 330951 + ... + 331388.

It is an arithmetic number, because the mean of its divisors is an integer number (24506580).

Almost surely, 2^145052241 is an apocalyptic number.

It is an amenable number.

145052241 is a deficient number, since it is larger than the sum of its proper divisors (51000399).

145052241 is an equidigital number, since it uses as much as digits as its factorization.

145052241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662415.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145052241 is about 12043.7635729036. The cubic root of 145052241 is about 525.4218722448.

The spelling of 145052241 in words is "one hundred forty-five million, fifty-two thousand, two hundred forty-one".