4155112215 has 32 divisors (see below), whose sum is σ = 7390368960. Its totient is φ = 2215009152.

The previous prime is 4155112207. The next prime is 4155112259. The reversal of 4155112215 is 5122115514.

It is a happy number.

It is not a de Polignac number, because 4155112215 - 2³ = 4155112207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339177 + ... + 351213.

It is an arithmetic number, because the mean of its divisors is an integer number (230949030).

Almost surely, 2^4155112215 is an apocalyptic number.

4155112215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4155112215 is a deficient number, since it is larger than the sum of its proper divisors (3235256745).

4155112215 is a wasteful number, since it uses less digits than its factorization.

4155112215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14608 (or 14602 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 4155112215 is about 64460.1599051693. The cubic root of 4155112215 is about 1607.6601705847.

Adding to 4155112215 its reverse (5122115514), we get a palindrome (9277227729).

The spelling of 4155112215 in words is "four billion, one hundred fifty-five million, one hundred twelve thousand, two hundred fifteen".