420014145731 has 16 divisors (see below), whose sum is σ = 440718520320. Its totient is φ = 399514769280.

The previous prime is 420014145637. The next prime is 420014145767. The reversal of 420014145731 is 137541410024.

It is a de Polignac number, because none of the positive numbers 2^k-420014145731 is a prime.

It is a super-2 number, since 2×420014145731² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420014145781) 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 15 ways as a sum of consecutive naturals, for example, 14539580 + ... + 14568438.

It is an arithmetic number, because the mean of its divisors is an integer number (27544907520).

Almost surely, 2^420014145731 is an apocalyptic number.

420014145731 is a deficient number, since it is larger than the sum of its proper divisors (20704374589).

420014145731 is a wasteful number, since it uses less digits than its factorization.

420014145731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32386.

The product of its (nonzero) digits is 13440, while the sum is 32.

Adding to 420014145731 its reverse (137541410024), we get a palindrome (557555555755).

The spelling of 420014145731 in words is "four hundred twenty billion, fourteen million, one hundred forty-five thousand, seven hundred thirty-one".