1206326631 has 8 divisors (see below), whose sum is σ = 1608596080. Its totient is φ = 804137472.

The previous prime is 1206326623. The next prime is 1206326633. The reversal of 1206326631 is 1366236021.

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

It is not a de Polignac number, because 1206326631 - 2³ = 1206326623 is a prime.

It is a super-2 number, since 2×1206326631² = 2910447881319620322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206326633) 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, 47175 + ... + 68103.

It is an arithmetic number, because the mean of its divisors is an integer number (201074510).

Almost surely, 2^1206326631 is an apocalyptic number.

1206326631 is a deficient number, since it is larger than the sum of its proper divisors (402269449).

1206326631 is a wasteful number, since it uses less digits than its factorization.

1206326631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40145.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1206326631 is about 34732.2131601198. The cubic root of 1206326631 is about 1064.5228103111.

The spelling of 1206326631 in words is "one billion, two hundred six million, three hundred twenty-six thousand, six hundred thirty-one".