420112515 has 16 divisors (see below), whose sum is σ = 707558400. Its totient is φ = 212267232.

The previous prime is 420112507. The next prime is 420112559. The reversal of 420112515 is 515211024.

It is not a de Polignac number, because 420112515 - 2³ = 420112507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420112491 and 420112500.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 736755 + ... + 737324.

It is an arithmetic number, because the mean of its divisors is an integer number (44222400).

Almost surely, 2^420112515 is an apocalyptic number.

420112515 is a deficient number, since it is larger than the sum of its proper divisors (287445885).

420112515 is a wasteful number, since it uses less digits than its factorization.

420112515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474106.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 420112515 is about 20496.6464330144. The cubic root of 420112515 is about 748.9541065984.

Adding to 420112515 its reverse (515211024), we get a palindrome (935323539).

The spelling of 420112515 in words is "four hundred twenty million, one hundred twelve thousand, five hundred fifteen".