145408544 has 24 divisors (see below), whose sum is σ = 287403228. Its totient is φ = 72417280.

The previous prime is 145408541. The next prime is 145408547. The reversal of 145408544 is 445804541.

It is an interprime number because it is at equal distance from previous prime (145408541) and next prime (145408547).

It can be written as a sum of positive squares in 2 ways, for example, as 138956944 + 6451600 = 11788^2 + 2540^2 .

It is a super-2 number, since 2×145408544² = 42287289336399872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145408541) 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, 617 + ... + 17064.

Almost surely, 2^145408544 is an apocalyptic number.

It is an amenable number.

145408544 is a deficient number, since it is larger than the sum of its proper divisors (141994684).

145408544 is a wasteful number, since it uses less digits than its factorization.

145408544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17948 (or 17940 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

The square root of 145408544 is about 12058.5465127436. The cubic root of 145408544 is about 525.8517318854.

The spelling of 145408544 in words is "one hundred forty-five million, four hundred eight thousand, five hundred forty-four".