126063000381 has 16 divisors (see below), whose sum is σ = 171364196160. Its totient is φ = 82403917440.

The previous prime is 126063000347. The next prime is 126063000397. The reversal of 126063000381 is 183000360621.

126063000381 is a nontrivial binomial coefficient, being equal to C(502122, 2).

It is not a de Polignac number, because 126063000381 - 2⁶ = 126063000317 is a prime.

It is a super-2 number, since 2×126063000381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126063000281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 502121.

It is an arithmetic number, because the mean of its divisors is an integer number (10710262260).

Almost surely, 2^126063000381 is an apocalyptic number.

126063000381 is the 502121-st triangular number and also the 251061-st hexagonal number.

It is an amenable number.

126063000381 is a deficient number, since it is larger than the sum of its proper divisors (45301195779).

126063000381 is a wasteful number, since it uses less digits than its factorization.

126063000381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503756.

The product of its (nonzero) digits is 5184, while the sum is 30.

It can be divided in two parts, 126063000 and 381, that added together give a triangular number (126063381 = T₁₅₈₇₈).

The spelling of 126063000381 in words is "one hundred twenty-six billion, sixty-three million, three hundred eighty-one", and thus it is an aban number.