1351047142 has 4 divisors (see below), whose sum is σ = 2026570716. Its totient is φ = 675523570.

The previous prime is 1351047127. The next prime is 1351047149. The reversal of 1351047142 is 2417401531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2417401531 = 359 ⋅6733709.

It is a self number, because there is not a number n which added to its sum of digits gives 1351047142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351047149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337761784 + ... + 337761787.

It is an arithmetic number, because the mean of its divisors is an integer number (506642679).

Almost surely, 2^1351047142 is an apocalyptic number.

1351047142 is a deficient number, since it is larger than the sum of its proper divisors (675523574).

1351047142 is an equidigital number, since it uses as much as digits as its factorization.

1351047142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675523573.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1351047142 is about 36756.5931772791. The cubic root of 1351047142 is about 1105.4951316009.

Adding to 1351047142 its reverse (2417401531), we get a palindrome (3768448673).

The spelling of 1351047142 in words is "one billion, three hundred fifty-one million, forty-seven thousand, one hundred forty-two".