1931025 has 12 divisors (see below), whose sum is σ = 3192752. Its totient is φ = 1029840.

The previous prime is 1931009. The next prime is 1931051. The reversal of 1931025 is 5201391.

It is not a de Polignac number, because 1931025 - 2⁴ = 1931009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1930992 and 1931010.

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, 12799 + ... + 12948.

2^1931025 is an apocalyptic number.

1931025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1931025 is a deficient number, since it is larger than the sum of its proper divisors (1261727).

1931025 is a wasteful number, since it uses less digits than its factorization.

1931025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25760 (or 25755 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1931025 is about 1389.6132555499. The cubic root of 1931025 is about 124.5267438233.

The spelling of 1931025 in words is "one million, nine hundred thirty-one thousand, twenty-five".