1229125 has 8 divisors (see below), whose sum is σ = 1534104. Its totient is φ = 983200.

The previous prime is 1229113. The next prime is 1229131. The reversal of 1229125 is 5219221.

It can be written as a sum of positive squares in 4 ways, for example, as 49729 + 1179396 = 223^2 + 1086^2 .

It is not a de Polignac number, because 1229125 - 2⁵ = 1229093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1229096 and 1229105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4792 + ... + 5041.

It is an arithmetic number, because the mean of its divisors is an integer number (191763).

2^1229125 is an apocalyptic number.

It is an amenable number.

1229125 is a deficient number, since it is larger than the sum of its proper divisors (304979).

1229125 is an frugal number, since it uses more digits than its factorization.

1229125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9848 (or 9838 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 1229125 is about 1108.6590999942. The cubic root of 1229125 is about 107.1187141369.

The spelling of 1229125 in words is "one million, two hundred twenty-nine thousand, one hundred twenty-five".