1242153 has 12 divisors (see below), whose sum is σ = 1957488. Its totient is φ = 752760.

The previous prime is 1242151. The next prime is 1242167. The reversal of 1242153 is 3512421.

It is not a de Polignac number, because 1242153 - 2¹ = 1242151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6175 + ... + 6372.

It is an arithmetic number, because the mean of its divisors is an integer number (163124).

2^1242153 is an apocalyptic number.

It is an amenable number.

1242153 is a deficient number, since it is larger than the sum of its proper divisors (715335).

1242153 is a wasteful number, since it uses less digits than its factorization.

1242153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564 (or 12561 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1242153 is about 1114.5191788390. The cubic root of 1242153 is about 107.4958498488.

Adding to 1242153 its reverse (3512421), we get a palindrome (4754574).

The spelling of 1242153 in words is "one million, two hundred forty-two thousand, one hundred fifty-three".