1985319 has 12 divisors (see below), whose sum is σ = 3277456. Its totient is φ = 1134432.

The previous prime is 1985317. The next prime is 1985363. The reversal of 1985319 is 9135891.

It is a happy number.

1985319 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 1985319 - 2¹ = 1985317 is a prime.

It is a super-2 number, since 2×1985319² = 7882983063522, which contains 22 as substring.

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 (1985317) 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, 15694 + ... + 15819.

2^1985319 is an apocalyptic number.

1985319 is a deficient number, since it is larger than the sum of its proper divisors (1292137).

1985319 is a wasteful number, since it uses less digits than its factorization.

1985319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31526 (or 31523 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 1985319 is about 1409.0134846764. The cubic root of 1985319 is about 125.6830659021.

It can be divided in two parts, 1985 and 319, that added together give a square (2304 = 48²).

The spelling of 1985319 in words is "one million, nine hundred eighty-five thousand, three hundred nineteen".