1206550156 has 12 divisors (see below), whose sum is σ = 2413100368. Its totient is φ = 517092912.

The previous prime is 1206550151. The next prime is 1206550159. The reversal of 1206550156 is 6510556021.

1206550156 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1206550151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21545511 + ... + 21545566.

Almost surely, 2^1206550156 is an apocalyptic number.

It is an amenable number.

1206550156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1206550156 is a wasteful number, since it uses less digits than its factorization.

1206550156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43091088 (or 43091086 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1206550156 is about 34735.4308451759. The cubic root of 1206550156 is about 1064.5885561215.

The spelling of 1206550156 in words is "one billion, two hundred six million, five hundred fifty thousand, one hundred fifty-six".