1283925 has 48 divisors (see below), whose sum is σ = 2410560. Its totient is φ = 599040.

The previous prime is 1283903. The next prime is 1283939. The reversal of 1283925 is 5293821.

It is a happy number.

It is not a de Polignac number, because 1283925 - 2⁷ = 1283797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1283892 and 1283901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24199 + ... + 24251.

It is an arithmetic number, because the mean of its divisors is an integer number (50220).

2^1283925 is an apocalyptic number.

1283925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1283925 is a deficient number, since it is larger than the sum of its proper divisors (1126635).

1283925 is a wasteful number, since it uses less digits than its factorization.

1283925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 97 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1283925 is about 1133.1041434926. The cubic root of 1283925 is about 108.6875715152.

The spelling of 1283925 in words is "one million, two hundred eighty-three thousand, nine hundred twenty-five".