145470641 has 4 divisors (see below), whose sum is σ = 150486900. Its totient is φ = 140454384.

The previous prime is 145470623. The next prime is 145470671. The reversal of 145470641 is 146074541.

145470641 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.

It can be written as a sum of positive squares in 2 ways, for example, as 28398241 + 117072400 = 5329^2 + 10820^2 .

It is a cyclic number.

It is not a de Polignac number, because 145470641 - 2²² = 141276337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145470598 and 145470607.

It is not an unprimeable number, because it can be changed into a prime (145470671) 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, 2508086 + ... + 2508143.

It is an arithmetic number, because the mean of its divisors is an integer number (37621725).

Almost surely, 2^145470641 is an apocalyptic number.

It is an amenable number.

145470641 is a deficient number, since it is larger than the sum of its proper divisors (5016259).

145470641 is an equidigital number, since it uses as much as digits as its factorization.

145470641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016258.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 145470641 is about 12061.1210507150. The cubic root of 145470641 is about 525.9265765654.

The spelling of 145470641 in words is "one hundred forty-five million, four hundred seventy thousand, six hundred forty-one".