1071925 has 12 divisors (see below), whose sum is σ = 1355940. Its totient is φ = 840320.

The previous prime is 1071919. The next prime is 1071937. The reversal of 1071925 is 5291701.

It can be written as a sum of positive squares in 6 ways, for example, as 37636 + 1034289 = 194^2 + 1017^2 .

It is not a de Polignac number, because 1071925 - 2¹⁷ = 940853 is a prime.

It is a super-2 number, since 2×1071925² = 2298046411250, which contains 22 as substring.

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 1071925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 921 + ... + 1729.

It is an arithmetic number, because the mean of its divisors is an integer number (112995).

2^1071925 is an apocalyptic number.

It is an amenable number.

1071925 is a deficient number, since it is larger than the sum of its proper divisors (284015).

1071925 is an equidigital number, since it uses as much as digits as its factorization.

1071925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 1071925 is about 1035.3381090253. The cubic root of 1071925 is about 102.3422121149.

The spelling of 1071925 in words is "one million, seventy-one thousand, nine hundred twenty-five".