1139021286 has 16 divisors (see below), whose sum is σ = 2453276784. Its totient is φ = 350468064.

The previous prime is 1139021231. The next prime is 1139021321. The reversal of 1139021286 is 6821209311.

It is a super-2 number, since 2×1139021286² = 2594738979922187592, which contains 22 as substring.

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, 7301341 + ... + 7301496.

It is an arithmetic number, because the mean of its divisors is an integer number (153329799).

Almost surely, 2^1139021286 is an apocalyptic number.

1139021286 is an abundant number, since it is smaller than the sum of its proper divisors (1314255498).

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

1139021286 is a wasteful number, since it uses less digits than its factorization.

1139021286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14602855.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1139021286 is about 33749.3894166991. The cubic root of 1139021286 is about 1044.3448916288.

The spelling of 1139021286 in words is "one billion, one hundred thirty-nine million, twenty-one thousand, two hundred eighty-six".