145896905 has 16 divisors (see below), whose sum is σ = 218277504. Its totient is φ = 90948480.

The previous prime is 145896887. The next prime is 145896913. The reversal of 145896905 is 509698541.

It is a happy number.

It is not a de Polignac number, because 145896905 - 2⁶ = 145896841 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145896905.

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 15 ways as a sum of consecutive naturals, for example, 189092 + ... + 189861.

It is an arithmetic number, because the mean of its divisors is an integer number (13642344).

Almost surely, 2^145896905 is an apocalyptic number.

It is an amenable number.

145896905 is a deficient number, since it is larger than the sum of its proper divisors (72380599).

145896905 is a wasteful number, since it uses less digits than its factorization.

145896905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378976.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 145896905 is about 12078.7791187686. The cubic root of 145896905 is about 526.4397727903.

The spelling of 145896905 in words is "one hundred forty-five million, eight hundred ninety-six thousand, nine hundred five".