145550641 has 4 divisors (see below), whose sum is σ = 145644400. Its totient is φ = 145456884.

The previous prime is 145550597. The next prime is 145550707. The reversal of 145550641 is 146055541.

145550641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145550641 - 2⁹ = 145550129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145556641) 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, 44511 + ... + 47668.

It is an arithmetic number, because the mean of its divisors is an integer number (36411100).

Almost surely, 2^145550641 is an apocalyptic number.

It is an amenable number.

145550641 is a deficient number, since it is larger than the sum of its proper divisors (93759).

145550641 is an equidigital number, since it uses as much as digits as its factorization.

145550641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93758.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 145550641 is about 12064.4370361820. The cubic root of 145550641 is about 526.0229681017.

The spelling of 145550641 in words is "one hundred forty-five million, five hundred fifty thousand, six hundred forty-one".