142421421036436 has 12 divisors (see below), whose sum is σ = 249951634342900. Its totient is φ = 71006668367040.

The previous prime is 142421421036431. The next prime is 142421421036449. The reversal of 142421421036436 is 634630124124241.

It can be written as a sum of positive squares in 2 ways, for example, as 51424244944900 + 90997176091536 = 7171070^2 + 9539244^2 .

It is a super-2 number, since 2×142421421036436² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 142421421036392 and 142421421036401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142421421036431) 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 3 ways as a sum of consecutive naturals, for example, 51010536225 + ... + 51010539016.

Almost surely, 2^{142421421036436} is an apocalyptic number.

It is an amenable number.

142421421036436 is a deficient number, since it is larger than the sum of its proper divisors (107530213306464).

142421421036436 is a wasteful number, since it uses less digits than its factorization.

142421421036436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102021075594 (or 102021075592 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 142421421036436 in words is "one hundred forty-two trillion, four hundred twenty-one billion, four hundred twenty-one million, thirty-six thousand, four hundred thirty-six".