145464545 has 16 divisors (see below), whose sum is σ = 178301520. Its totient is φ = 113900544.

The previous prime is 145464541. The next prime is 145464601. The reversal of 145464545 is 545464541.

It is a happy number.

145464545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 6507601 + 138956944 = 2551^2 + 11788^2 .

It is a cyclic number.

It is not a de Polignac number, because 145464545 - 2² = 145464541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145464499 and 145464508.

It is not an unprimeable number, because it can be changed into a prime (145464541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48551 + ... + 51459.

It is an arithmetic number, because the mean of its divisors is an integer number (11143845).

Almost surely, 2^145464545 is an apocalyptic number.

It is an amenable number.

145464545 is a deficient number, since it is larger than the sum of its proper divisors (32836975).

145464545 is a wasteful number, since it uses less digits than its factorization.

145464545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124.

The product of its digits is 192000, while the sum is 38.

The square root of 145464545 is about 12060.8683352402. The cubic root of 145464545 is about 525.9192300814.

It can be divided in two parts, 14546 and 4545, that added together give a palindrome (19091).

The spelling of 145464545 in words is "one hundred forty-five million, four hundred sixty-four thousand, five hundred forty-five".