1139139066 has 32 divisors (see below), whose sum is σ = 2467116288. Its totient is φ = 348563520.

The previous prime is 1139139049. The next prime is 1139139103. The reversal of 1139139066 is 6609319311.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26226 + ... + 54461.

It is an arithmetic number, because the mean of its divisors is an integer number (77097384).

Almost surely, 2^1139139066 is an apocalyptic number.

1139139066 is an abundant number, since it is smaller than the sum of its proper divisors (1327977222).

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

1139139066 is a wasteful number, since it uses less digits than its factorization.

1139139066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80886.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 1139139066 is about 33751.1342920501. The cubic root of 1139139066 is about 1044.3808870643.

The spelling of 1139139066 in words is "one billion, one hundred thirty-nine million, one hundred thirty-nine thousand, sixty-six".