1912525 has 12 divisors (see below), whose sum is σ = 2396052. Its totient is φ = 1514240.

The previous prime is 1912513. The next prime is 1912529. The reversal of 1912525 is 5252191.

It can be written as a sum of positive squares in 6 ways, for example, as 24649 + 1887876 = 157^2 + 1374^2 .

It is not a de Polignac number, because 1912525 - 2¹⁷ = 1781453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1912525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912529) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2487 + ... + 3163.

It is an arithmetic number, because the mean of its divisors is an integer number (199671).

2^1912525 is an apocalyptic number.

It is an amenable number.

1912525 is a deficient number, since it is larger than the sum of its proper divisors (483527).

1912525 is a wasteful number, since it uses less digits than its factorization.

1912525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 795 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 1912525 is about 1382.9407073335. The cubic root of 1912525 is about 124.1277948878.

It can be divided in two parts, 19 and 12525, that added together give a square (12544 = 112²).

The spelling of 1912525 in words is "one million, nine hundred twelve thousand, five hundred twenty-five".