1451352242 has 4 divisors (see below), whose sum is σ = 2177028366. Its totient is φ = 725676120.

The previous prime is 1451352229. The next prime is 1451352247. The reversal of 1451352242 is 2422531541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2422531541 = 83 ⋅29187127.

It can be written as a sum of positive squares in only one way, i.e., 930189001 + 521163241 = 30499^2 + 22829^2 .

It is not an unprimeable number, because it can be changed into a prime (1451352247) by changing a digit.

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 as a sum of consecutive naturals, namely, 362838059 + ... + 362838062.

Almost surely, 2^1451352242 is an apocalyptic number.

1451352242 is a deficient number, since it is larger than the sum of its proper divisors (725676124).

1451352242 is an equidigital number, since it uses as much as digits as its factorization.

1451352242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725676123.

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

The square root of 1451352242 is about 38096.6171989063. The cubic root of 1451352242 is about 1132.2029341672.

Adding to 1451352242 its reverse (2422531541), we get a palindrome (3873883783).

The spelling of 1451352242 in words is "one billion, four hundred fifty-one million, three hundred fifty-two thousand, two hundred forty-two".