1652941985 has 4 divisors (see below), whose sum is σ = 1983530388. Its totient is φ = 1322353584.

The previous prime is 1652941967. The next prime is 1652942003. The reversal of 1652941985 is 5891492561.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1652941967) and next prime (1652942003).

It can be written as a sum of positive squares in 2 ways, for example, as 412211809 + 1240730176 = 20303^2 + 35224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1652941985 - 2⁶ = 1652941921 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 165294194 + ... + 165294203.

It is an arithmetic number, because the mean of its divisors is an integer number (495882597).

Almost surely, 2^1652941985 is an apocalyptic number.

It is an amenable number.

1652941985 is a deficient number, since it is larger than the sum of its proper divisors (330588403).

1652941985 is an equidigital number, since it uses as much as digits as its factorization.

1652941985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330588402.

The product of its digits is 777600, while the sum is 50.

The square root of 1652941985 is about 40656.3892272789. The cubic root of 1652941985 is about 1182.3676451678.

The spelling of 1652941985 in words is "one billion, six hundred fifty-two million, nine hundred forty-one thousand, nine hundred eighty-five".