145353505 has 8 divisors (see below), whose sum is σ = 190281024. Its totient is φ = 105711600.

The previous prime is 145353463. The next prime is 145353517. The reversal of 145353505 is 505353541.

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

It is not a de Polignac number, because 145353505 - 2⁹ = 145352993 is a prime.

It is a super-2 number, since 2×145353505² = 42255282831570050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321341 + ... + 1321450.

It is an arithmetic number, because the mean of its divisors is an integer number (23785128).

Almost surely, 2^145353505 is an apocalyptic number.

It is an amenable number.

145353505 is a deficient number, since it is larger than the sum of its proper divisors (44927519).

145353505 is a wasteful number, since it uses less digits than its factorization.

145353505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642807.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 145353505 is about 12056.2641394422. The cubic root of 145353505 is about 525.7853763029.

The spelling of 145353505 in words is "one hundred forty-five million, three hundred fifty-three thousand, five hundred five".