1206613215 has 24 divisors (see below), whose sum is σ = 2117943360. Its totient is φ = 635379264.

The previous prime is 1206613207. The next prime is 1206613271. The reversal of 1206613215 is 5123166021.

1206613215 is a `hidden beast` number, since 1 + 20 + 6 + 613 + 21 + 5 = 666.

It is not a de Polignac number, because 1206613215 - 2³ = 1206613207 is a prime.

It is a super-2 number, since 2×1206613215² = 2911830901225272450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166152 + ... + 173261.

It is an arithmetic number, because the mean of its divisors is an integer number (88247640).

Almost surely, 2^1206613215 is an apocalyptic number.

1206613215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1206613215 is a deficient number, since it is larger than the sum of its proper divisors (911330145).

1206613215 is a wasteful number, since it uses less digits than its factorization.

1206613215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339503 (or 339500 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1206613215 is about 34736.3385376179. The cubic root of 1206613215 is about 1064.6071023101.

Adding to 1206613215 its reverse (5123166021), we get a palindrome (6329779236).

It can be divided in two parts, 12066 and 13215, that added together give a square (25281 = 159²).

The spelling of 1206613215 in words is "one billion, two hundred six million, six hundred thirteen thousand, two hundred fifteen".