1139956210 has 32 divisors (see below), whose sum is σ = 2107171584. Its totient is φ = 443760000.

The previous prime is 1139956201. The next prime is 1139956231. The reversal of 1139956210 is 126599311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1139956210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173485 + ... + 179935.

It is an arithmetic number, because the mean of its divisors is an integer number (65849112).

Almost surely, 2^1139956210 is an apocalyptic number.

1139956210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1139956210 is a deficient number, since it is larger than the sum of its proper divisors (967215374).

1139956210 is a wasteful number, since it uses less digits than its factorization.

1139956210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6930.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 1139956210 is about 33763.2375521069. The cubic root of 1139956210 is about 1044.6305509325.

The spelling of 1139956210 in words is "one billion, one hundred thirty-nine million, nine hundred fifty-six thousand, two hundred ten".