1086156349 has 4 divisors (see below), whose sum is σ = 1115511964. Its totient is φ = 1056800736.

The previous prime is 1086156319. The next prime is 1086156359. The reversal of 1086156349 is 9436516801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9436516801 = 19 ⋅496658779.

It can be written as a sum of positive squares in 2 ways, for example, as 602948025 + 483208324 = 24555^2 + 21982^2 .

It is a cyclic number.

It is not a de Polignac number, because 1086156349 - 2⁵ = 1086156317 is a prime.

It is a super-2 number, since 2×1086156349² = 2359471228946019602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086156319) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14677752 + ... + 14677825.

It is an arithmetic number, because the mean of its divisors is an integer number (278877991).

Almost surely, 2^1086156349 is an apocalyptic number.

It is an amenable number.

1086156349 is a deficient number, since it is larger than the sum of its proper divisors (29355615).

1086156349 is an equidigital number, since it uses as much as digits as its factorization.

1086156349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29355614.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1086156349 is about 32956.8862151751. The cubic root of 1086156349 is about 1027.9313585588.

The spelling of 1086156349 in words is "one billion, eighty-six million, one hundred fifty-six thousand, three hundred forty-nine".