421156126 has 32 divisors (see below), whose sum is σ = 670560768. Its totient is φ = 198132480.

The previous prime is 421156123. The next prime is 421156157. The reversal of 421156126 is 621651124.

It is a junction number, because it is equal to n+sod(n) for n = 421156094 and 421156103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421156123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285571 + ... + 287041.

It is an arithmetic number, because the mean of its divisors is an integer number (20955024).

Almost surely, 2^421156126 is an apocalyptic number.

421156126 is a deficient number, since it is larger than the sum of its proper divisors (249404642).

421156126 is a wasteful number, since it uses less digits than its factorization.

421156126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636.

The product of its digits is 2880, while the sum is 28.

The square root of 421156126 is about 20522.0887338497. The cubic root of 421156126 is about 749.5737583959.

The spelling of 421156126 in words is "four hundred twenty-one million, one hundred fifty-six thousand, one hundred twenty-six".