145345045 has 8 divisors (see below), whose sum is σ = 174883896. Its totient is φ = 115962816.

The previous prime is 145345037. The next prime is 145345049. The reversal of 145345045 is 540543541.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12680721 + 132664324 = 3561^2 + 11518^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 145345045 - 2³ = 145345037 is a prime.

It is a super-2 number, since 2×145345045² = 42250364212104050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145344998 and 145345016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145345049) 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, 37102 + ... + 40831.

It is an arithmetic number, because the mean of its divisors is an integer number (21860487).

Almost surely, 2^145345045 is an apocalyptic number.

It is an amenable number.

145345045 is a deficient number, since it is larger than the sum of its proper divisors (29538851).

145345045 is an equidigital number, since it uses as much as digits as its factorization.

145345045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78311.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 145345045 is about 12055.9132793829. The cubic root of 145345045 is about 525.7751753550.

Adding to 145345045 its reverse (540543541), we get a palindrome (685888586).

The spelling of 145345045 in words is "one hundred forty-five million, three hundred forty-five thousand, forty-five".