1206669331 has 8 divisors (see below), whose sum is σ = 1379571200. Its totient is φ = 1033897608.

The previous prime is 1206669329. The next prime is 1206669377. The reversal of 1206669331 is 1339666021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1206669331 - 2¹ = 1206669329 is a prime.

It is a super-2 number, since 2×1206669331² = 2912101748751975122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1206660331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11781 + ... + 50518.

It is an arithmetic number, because the mean of its divisors is an integer number (172446400).

Almost surely, 2^1206669331 is an apocalyptic number.

1206669331 is a deficient number, since it is larger than the sum of its proper divisors (172901869).

1206669331 is an equidigital number, since it uses as much as digits as its factorization.

1206669331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65073.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 1206669331 is about 34737.1462702393. The cubic root of 1206669331 is about 1064.6236059599.

The spelling of 1206669331 in words is "one billion, two hundred six million, six hundred sixty-nine thousand, three hundred thirty-one".