1242125 has 16 divisors (see below), whose sum is σ = 1634880. Its totient is φ = 939600.

The previous prime is 1242121. The next prime is 1242151. The reversal of 1242125 is 5212421.

It is not a de Polignac number, because 1242125 - 2² = 1242121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2114 + ... + 2636.

It is an arithmetic number, because the mean of its divisors is an integer number (102180).

2^1242125 is an apocalyptic number.

It is an amenable number.

1242125 is a deficient number, since it is larger than the sum of its proper divisors (392755).

1242125 is an equidigital number, since it uses as much as digits as its factorization.

1242125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 547 counting only the distinct ones).

The product of its digits is 160, while the sum is 17.

The square root of 1242125 is about 1114.5066172975. The cubic root of 1242125 is about 107.4950421366.

Adding to 1242125 its reverse (5212421), we get a palindrome (6454546).

The spelling of 1242125 in words is "one million, two hundred forty-two thousand, one hundred twenty-five".