1242541000 has 64 divisors (see below), whose sum is σ = 2914030080. Its totient is φ = 495908800.

The previous prime is 1242540979. The next prime is 1242541037. The reversal of 1242541000 is 1452421.

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, 561897 + ... + 564103.

It is an arithmetic number, because the mean of its divisors is an integer number (45531720).

Almost surely, 2^1242541000 is an apocalyptic number.

1242541000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242541000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457015040).

1242541000 is an abundant number, since it is smaller than the sum of its proper divisors (1671489080).

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

1242541000 is a wasteful number, since it uses less digits than its factorization.

1242541000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791 (or 2777 counting only the distinct ones).

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

The square root of 1242541000 is about 35249.6950341418. The cubic root of 1242541000 is about 1075.0704118293.

Adding to 1242541000 its reverse (1452421), we get a palindrome (1243993421).

The spelling of 1242541000 in words is "one billion, two hundred forty-two million, five hundred forty-one thousand".