1242054052 has 6 divisors (see below), whose sum is σ = 2173594598. Its totient is φ = 621027024.

The previous prime is 1242054013. The next prime is 1242054059. The reversal of 1242054052 is 2504502421.

It can be written as a sum of positive squares in only one way, i.e., 947039076 + 295014976 = 30774^2 + 17176^2 .

It is not an unprimeable number, because it can be changed into a prime (1242054059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155256753 + ... + 155256760.

Almost surely, 2^1242054052 is an apocalyptic number.

It is an amenable number.

1242054052 is a deficient number, since it is larger than the sum of its proper divisors (931540546).

1242054052 is a wasteful number, since it uses less digits than its factorization.

1242054052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310513517 (or 310513515 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1242054052 is about 35242.7872337022. The cubic root of 1242054052 is about 1074.9299545491.

Adding to 1242054052 its reverse (2504502421), we get a palindrome (3746556473).

The spelling of 1242054052 in words is "one billion, two hundred forty-two million, fifty-four thousand, fifty-two".