145140441 has 8 divisors (see below), whose sum is σ = 204904224. Its totient is φ = 91068480.

The previous prime is 145140431. The next prime is 145140467. The reversal of 145140441 is 144041541.

145140441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145140441 - 2⁷ = 145140313 is a prime.

It is a super-2 number, since 2×145140441² = 42131495227348962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145140431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422895 + ... + 1422996.

It is an arithmetic number, because the mean of its divisors is an integer number (25613028).

Almost surely, 2^145140441 is an apocalyptic number.

It is an amenable number.

145140441 is a deficient number, since it is larger than the sum of its proper divisors (59763783).

145140441 is a wasteful number, since it uses less digits than its factorization.

145140441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845911.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 145140441 is about 12047.4246625576. The cubic root of 145140441 is about 525.5283461126.

Adding to 145140441 its reverse (144041541), we get a palindrome (289181982).

The spelling of 145140441 in words is "one hundred forty-five million, one hundred forty thousand, four hundred forty-one".