145836985 has 12 divisors (see below), whose sum is σ = 203576868. Its totient is φ = 100002336.

The previous prime is 145836983. The next prime is 145837001. The reversal of 145836985 is 589638541.

145836985 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 2 ways, for example, as 15808576 + 130028409 = 3976^2 + 11403^2 .

It is not a de Polignac number, because 145836985 - 2¹ = 145836983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145836983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297382 + ... + 297871.

It is an arithmetic number, because the mean of its divisors is an integer number (16964739).

Almost surely, 2^145836985 is an apocalyptic number.

It is an amenable number.

145836985 is a deficient number, since it is larger than the sum of its proper divisors (57739883).

145836985 is an equidigital number, since it uses as much as digits as its factorization.

145836985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595272 (or 595265 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The square root of 145836985 is about 12076.2984809088. The cubic root of 145836985 is about 526.3676931470.

The spelling of 145836985 in words is "one hundred forty-five million, eight hundred thirty-six thousand, nine hundred eighty-five".