1254531242 has 8 divisors (see below), whose sum is σ = 1946686500. Its totient is φ = 605635744.

The previous prime is 1254531233. The next prime is 1254531283. The reversal of 1254531242 is 2421354521.

It can be written as a sum of positive squares in 2 ways, for example, as 1102970521 + 151560721 = 33211^2 + 12311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10814867 + ... + 10814982.

Almost surely, 2^1254531242 is an apocalyptic number.

1254531242 is a deficient number, since it is larger than the sum of its proper divisors (692155258).

1254531242 is a wasteful number, since it uses less digits than its factorization.

1254531242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21629880.

The product of its digits is 9600, while the sum is 29.

The square root of 1254531242 is about 35419.3625295544. The cubic root of 1254531242 is about 1078.5174106963.

Adding to 1254531242 its reverse (2421354521), we get a palindrome (3675885763).

The spelling of 1254531242 in words is "one billion, two hundred fifty-four million, five hundred thirty-one thousand, two hundred forty-two".