420101138 has 8 divisors (see below), whose sum is σ = 630494832. Its totient is φ = 209936196.

The previous prime is 420101137. The next prime is 420101147. The reversal of 420101138 is 831101024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×420101138² = 352969932297790088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420101131) 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 in 3 ways as a sum of consecutive naturals, for example, 52520 + ... + 59987.

It is an arithmetic number, because the mean of its divisors is an integer number (78811854).

Almost surely, 2^420101138 is an apocalyptic number.

420101138 is a deficient number, since it is larger than the sum of its proper divisors (210393694).

420101138 is a wasteful number, since it uses less digits than its factorization.

420101138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114376.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 420101138 is about 20496.3688979292. The cubic root of 420101138 is about 748.9473457685.

The spelling of 420101138 in words is "four hundred twenty million, one hundred one thousand, one hundred thirty-eight".