1254012442 has 4 divisors (see below), whose sum is σ = 1881018666. Its totient is φ = 627006220.

The previous prime is 1254012433. The next prime is 1254012467. The reversal of 1254012442 is 2442104521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 709210161 + 544802281 = 26631^2 + 23341^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313503109 + ... + 313503112.

Almost surely, 2^1254012442 is an apocalyptic number.

1254012442 is a deficient number, since it is larger than the sum of its proper divisors (627006224).

1254012442 is an equidigital number, since it uses as much as digits as its factorization.

1254012442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627006223.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1254012442 is about 35412.0380944108. The cubic root of 1254012442 is about 1078.3687198383.

Adding to 1254012442 its reverse (2442104521), we get a palindrome (3696116963).

The spelling of 1254012442 in words is "one billion, two hundred fifty-four million, twelve thousand, four hundred forty-two".