1149831 has 12 divisors (see below), whose sum is σ = 1670760. Its totient is φ = 762000.

The previous prime is 1149817. The next prime is 1149857. The reversal of 1149831 is 1389411.

It is not a de Polignac number, because 1149831 - 2¹⁹ = 625543 is a prime.

It is a super-2 number, since 2×1149831² = 2644222657122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1149795 and 1149804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2005 + ... + 2513.

It is an arithmetic number, because the mean of its divisors is an integer number (139230).

2^1149831 is an apocalyptic number.

1149831 is a deficient number, since it is larger than the sum of its proper divisors (520929).

1149831 is a wasteful number, since it uses less digits than its factorization.

1149831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 763 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1149831 is about 1072.3017299249. The cubic root of 1149831 is about 104.7638229053.

The spelling of 1149831 in words is "one million, one hundred forty-nine thousand, eight hundred thirty-one".