420113156 has 6 divisors (see below), whose sum is σ = 735198030. Its totient is φ = 210056576.

The previous prime is 420113153. The next prime is 420113167. The reversal of 420113156 is 651311024.

It can be written as a sum of positive squares in only one way, i.e., 408444100 + 11669056 = 20210^2 + 3416^2 .

It is not an unprimeable number, because it can be changed into a prime (420113153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52514141 + ... + 52514148.

It is an arithmetic number, because the mean of its divisors is an integer number (122533005).

Almost surely, 2^420113156 is an apocalyptic number.

It is an amenable number.

420113156 is a deficient number, since it is larger than the sum of its proper divisors (315084874).

420113156 is a wasteful number, since it uses less digits than its factorization.

420113156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105028293 (or 105028291 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 420113156 is about 20496.6620697127. The cubic root of 420113156 is about 748.9544875117.

The spelling of 420113156 in words is "four hundred twenty million, one hundred thirteen thousand, one hundred fifty-six".