1965245 has 12 divisors (see below), whose sum is σ = 2442780. Its totient is φ = 1517760.

The previous prime is 1965239. The next prime is 1965247. The reversal of 1965245 is 5425691.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1315609 + 649636 = 1147^2 + 806^2 .

It is not a de Polignac number, because 1965245 - 2¹⁴ = 1948861 is a prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1965247) 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, 4601 + ... + 5009.

It is an arithmetic number, because the mean of its divisors is an integer number (203565).

2^1965245 is an apocalyptic number.

It is an amenable number.

1965245 is a deficient number, since it is larger than the sum of its proper divisors (477535).

1965245 is an equidigital number, since it uses as much as digits as its factorization.

1965245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 445 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 1965245 is about 1401.8719627698. The cubic root of 1965245 is about 125.2580270100.

The spelling of 1965245 in words is "one million, nine hundred sixty-five thousand, two hundred forty-five".