1242715707434 has 16 divisors (see below), whose sum is σ = 1907538442920. Its totient is φ = 606971951040.

The previous prime is 1242715707379. The next prime is 1242715707437. The reversal of 1242715707434 is 4347075172421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1090886247025 + 151829460409 = 1044455^2 + 389653^2 .

It is not an unprimeable number, because it can be changed into a prime (1242715707437) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 25573397 + ... + 25621944.

Almost surely, 2^{1242715707434} is an apocalyptic number.

1242715707434 is a deficient number, since it is larger than the sum of its proper divisors (664822735486).

1242715707434 is a wasteful number, since it uses less digits than its factorization.

1242715707434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51195625.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 1242715707434 in words is "one trillion, two hundred forty-two billion, seven hundred fifteen million, seven hundred seven thousand, four hundred thirty-four".