145890085 has 16 divisors (see below), whose sum is σ = 191253312. Its totient is φ = 105952000.

The previous prime is 145890077. The next prime is 145890109. The reversal of 145890085 is 580098541.

It is not a de Polignac number, because 145890085 - 2³ = 145890077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50685 + ... + 53485.

It is an arithmetic number, because the mean of its divisors is an integer number (11953332).

Almost surely, 2^145890085 is an apocalyptic number.

It is an amenable number.

145890085 is a deficient number, since it is larger than the sum of its proper divisors (45363227).

145890085 is a wasteful number, since it uses less digits than its factorization.

145890085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 145890085 is about 12078.4968021687. The cubic root of 145890085 is about 526.4315697943.

The spelling of 145890085 in words is "one hundred forty-five million, eight hundred ninety thousand, eighty-five".