15420301215 has 16 divisors (see below), whose sum is σ = 26915435136. Its totient is φ = 7476509600.

The previous prime is 15420301207. The next prime is 15420301223. The reversal of 15420301215 is 51210302451.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15420301207) and next prime (15420301223).

It is not a de Polignac number, because 15420301215 - 2³ = 15420301207 is a prime.

It is a super-2 number, since 2×15420301215² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46728021 + ... + 46728350.

It is an arithmetic number, because the mean of its divisors is an integer number (1682214696).

Almost surely, 2^15420301215 is an apocalyptic number.

15420301215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15420301215 is a deficient number, since it is larger than the sum of its proper divisors (11495133921).

15420301215 is a wasteful number, since it uses less digits than its factorization.

15420301215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93456390.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15420301215 its reverse (51210302451), we get a palindrome (66630603666).

The spelling of 15420301215 in words is "fifteen billion, four hundred twenty million, three hundred one thousand, two hundred fifteen".