1149688855 has 16 divisors (see below), whose sum is σ = 1610265600. Its totient is φ = 771583392.

The previous prime is 1149688843. The next prime is 1149688861. The reversal of 1149688855 is 5588869411.

1149688855 = 13840² + 13841² + ... + 13845².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1149688855 is a prime.

It is a super-2 number, since 2×1149688855² = 2643568926622422050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1149688796 and 1149688805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347805 + ... + 351094.

It is an arithmetic number, because the mean of its divisors is an integer number (100641600).

Almost surely, 2^1149688855 is an apocalyptic number.

1149688855 is a deficient number, since it is larger than the sum of its proper divisors (460576745).

1149688855 is an equidigital number, since it uses as much as digits as its factorization.

1149688855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698958.

The product of its digits is 2764800, while the sum is 55.

The square root of 1149688855 is about 33907.0620225345. The cubic root of 1149688855 is about 1047.5950567166.

The spelling of 1149688855 in words is "one billion, one hundred forty-nine million, six hundred eighty-eight thousand, eight hundred fifty-five".