1229925 has 36 divisors (see below), whose sum is σ = 2194304. Its totient is φ = 607200.

The previous prime is 1229911. The next prime is 1229939. The reversal of 1229925 is 5299221.

It is an interprime number because it is at equal distance from previous prime (1229911) and next prime (1229939).

It is not a de Polignac number, because 1229925 - 2¹⁸ = 967781 is a prime.

Its product of digits (3240) is a multiple of the sum of its prime factors (90).

It is a junction number, because it is equal to n+sod(n) for n = 1229892 and 1229901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39660 + ... + 39690.

2^1229925 is an apocalyptic number.

1229925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1229925 is a deficient number, since it is larger than the sum of its proper divisors (964379).

1229925 is a wasteful number, since it uses less digits than its factorization.

1229925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 62 counting only the distinct ones).

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

The square root of 1229925 is about 1109.0198375142. The cubic root of 1229925 is about 107.1419491987.

The spelling of 1229925 in words is "one million, two hundred twenty-nine thousand, nine hundred twenty-five".