1142202520 has 16 divisors (see below), whose sum is σ = 2569955760. Its totient is φ = 456880992.

The previous prime is 1142202487. The next prime is 1142202539. The reversal of 1142202520 is 252022411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14277492 + ... + 14277571.

It is an arithmetic number, because the mean of its divisors is an integer number (160622235).

Almost surely, 2^1142202520 is an apocalyptic number.

1142202520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142202520 is an abundant number, since it is smaller than the sum of its proper divisors (1427753240).

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

1142202520 is a wasteful number, since it uses less digits than its factorization.

1142202520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28555074 (or 28555070 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1142202520 is about 33796.4867996660. The cubic root of 1142202520 is about 1045.3162569265.

Adding to 1142202520 its reverse (252022411), we get a palindrome (1394224931).

The spelling of 1142202520 in words is "one billion, one hundred forty-two million, two hundred two thousand, five hundred twenty".