1214865015 has 32 divisors (see below), whose sum is σ = 2392352256. Its totient is φ = 512645760.

The previous prime is 1214864969. The next prime is 1214865023. The reversal of 1214865015 is 5105684121.

It is not a de Polignac number, because 1214865015 - 2¹³ = 1214856823 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 443641 + ... + 446370.

It is an arithmetic number, because the mean of its divisors is an integer number (74761008).

Almost surely, 2^1214865015 is an apocalyptic number.

1214865015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1214865015 is a deficient number, since it is larger than the sum of its proper divisors (1177487241).

1214865015 is a wasteful number, since it uses less digits than its factorization.

1214865015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890039.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1214865015 is about 34854.9137855769. The cubic root of 1214865015 is about 1067.0284732380.

The spelling of 1214865015 in words is "one billion, two hundred fourteen million, eight hundred sixty-five thousand, fifteen".