1086149857 has 8 divisors (see below), whose sum is σ = 1196902784. Its totient is φ = 979283088.

The previous prime is 1086149809. The next prime is 1086149887. The reversal of 1086149857 is 7589416801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1086149857 is a prime.

It is a super-3 number, since 3×1086149857³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1086149857.

It is not an unprimeable number, because it can be changed into a prime (1086149887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970953 + ... + 972070.

It is an arithmetic number, because the mean of its divisors is an integer number (149612848).

Almost surely, 2^1086149857 is an apocalyptic number.

It is an amenable number.

1086149857 is a deficient number, since it is larger than the sum of its proper divisors (110752927).

1086149857 is a wasteful number, since it uses less digits than its factorization.

1086149857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943079.

The product of its (nonzero) digits is 483840, while the sum is 49.

The square root of 1086149857 is about 32956.7877227135. The cubic root of 1086149857 is about 1027.9293105591.

The spelling of 1086149857 in words is "one billion, eighty-six million, one hundred forty-nine thousand, eight hundred fifty-seven".