1391119086 has 64 divisors (see below), whose sum is σ = 3364945920. Its totient is φ = 374531040.

The previous prime is 1391119073. The next prime is 1391119087. The reversal of 1391119086 is 6809111931.

It is a super-2 number, since 2×1391119086² = 3870424622866950792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391119087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147855 + ... + 156981.

It is an arithmetic number, because the mean of its divisors is an integer number (52577280).

Almost surely, 2^1391119086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1391119086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682472960).

1391119086 is an abundant number, since it is smaller than the sum of its proper divisors (1973826834).

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

1391119086 is a wasteful number, since it uses less digits than its factorization.

1391119086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9349.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 1391119086 is about 37297.7088572475. The cubic root of 1391119086 is about 1116.3184510849.

The spelling of 1391119086 in words is "one billion, three hundred ninety-one million, one hundred nineteen thousand, eighty-six".