1243526052 has 12 divisors (see below), whose sum is σ = 2901560816. Its totient is φ = 414508680.

The previous prime is 1243525973. The next prime is 1243526059. The reversal of 1243526052 is 2506253421.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1243526059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51813574 + ... + 51813597.

Almost surely, 2^1243526052 is an apocalyptic number.

1243526052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243526052 is an abundant number, since it is smaller than the sum of its proper divisors (1658034764).

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

1243526052 is a wasteful number, since it uses less digits than its factorization.

1243526052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103627178 (or 103627176 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1243526052 is about 35263.6647556660. The cubic root of 1243526052 is about 1075.3544321108.

Adding to 1243526052 its reverse (2506253421), we get a palindrome (3749779473).

The spelling of 1243526052 in words is "one billion, two hundred forty-three million, five hundred twenty-six thousand, fifty-two".