1242534 has 32 divisors (see below), whose sum is σ = 2653920. Its totient is φ = 387072.

The previous prime is 1242517. The next prime is 1242569. The reversal of 1242534 is 4352421.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6342 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (82935).

2^1242534 is an apocalyptic number.

1242534 is an abundant number, since it is smaller than the sum of its proper divisors (1411386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242534 is a wasteful number, since it uses less digits than its factorization.

1242534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its digits is 960, while the sum is 21.

The square root of 1242534 is about 1114.6900914604. The cubic root of 1242534 is about 107.5068392981.

Adding to 1242534 its reverse (4352421), we get a palindrome (5594955).

The spelling of 1242534 in words is "one million, two hundred forty-two thousand, five hundred thirty-four".