1242531364 has 48 divisors (see below), whose sum is σ = 2253484800. Its totient is φ = 599196416.

The previous prime is 1242531347. The next prime is 1242531431. The reversal of 1242531364 is 4631352421.

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, 5198757 + ... + 5198995.

It is an arithmetic number, because the mean of its divisors is an integer number (46947600).

Almost surely, 2^1242531364 is an apocalyptic number.

It is an amenable number.

1242531364 is a deficient number, since it is larger than the sum of its proper divisors (1010953436).

1242531364 is a wasteful number, since it uses less digits than its factorization.

1242531364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 1242531364 is about 35249.5583518432. The cubic root of 1242531364 is about 1075.0676327378.

Adding to 1242531364 its reverse (4631352421), we get a palindrome (5873883785).

The spelling of 1242531364 in words is "one billion, two hundred forty-two million, five hundred thirty-one thousand, three hundred sixty-four".