1206739128 has 32 divisors (see below), whose sum is σ = 3447826560. Its totient is φ = 344782560.

The previous prime is 1206739117. The next prime is 1206739133. The reversal of 1206739128 is 8219376021.

1206739128 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3591318 + ... + 3591653.

It is an arithmetic number, because the mean of its divisors is an integer number (107744580).

Almost surely, 2^1206739128 is an apocalyptic number.

It is an amenable number.

1206739128 is an abundant number, since it is smaller than the sum of its proper divisors (2241087432).

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

1206739128 is a wasteful number, since it uses less digits than its factorization.

1206739128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182987 (or 7182983 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1206739128 is about 34738.1509007028. The cubic root of 1206739128 is about 1064.6441324619.

The spelling of 1206739128 in words is "one billion, two hundred six million, seven hundred thirty-nine thousand, one hundred twenty-eight".