1916625 has 32 divisors (see below), whose sum is σ = 3369600. Its totient is φ = 964800.

The previous prime is 1916617. The next prime is 1916633. The reversal of 1916625 is 5266191.

It is an interprime number because it is at equal distance from previous prime (1916617) and next prime (1916633).

It is not a de Polignac number, because 1916625 - 2³ = 1916617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1916592 and 1916601.

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 31 ways as a sum of consecutive naturals, for example, 6991 + ... + 7259.

It is an arithmetic number, because the mean of its divisors is an integer number (105300).

2^1916625 is an apocalyptic number.

1916625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1916625 is a deficient number, since it is larger than the sum of its proper divisors (1452975).

1916625 is a wasteful number, since it uses less digits than its factorization.

1916625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 296 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 1916625 is about 1384.4222621729. The cubic root of 1916625 is about 124.2164317632.

It can be divided in two parts, 19166 and 25, that added together give a palindrome (19191).

The spelling of 1916625 in words is "one million, nine hundred sixteen thousand, six hundred twenty-five".