1149231 has 4 divisors (see below), whose sum is σ = 1532312. Its totient is φ = 766152.

The previous prime is 1149229. The next prime is 1149233. The reversal of 1149231 is 1329411.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1149229) and next prime (1149233).

It is not a de Polignac number, because 1149231 - 2¹ = 1149229 is a prime.

It is a super-2 number, since 2×1149231² = 2641463782722, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1149198 and 1149207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191536 + ... + 191541.

It is an arithmetic number, because the mean of its divisors is an integer number (383078).

2^1149231 is an apocalyptic number.

1149231 is a deficient number, since it is larger than the sum of its proper divisors (383081).

1149231 is an equidigital number, since it uses as much as digits as its factorization.

1149231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383080.

The product of its digits is 216, while the sum is 21.

The square root of 1149231 is about 1072.0219214177. The cubic root of 1149231 is about 104.7455972616.

The spelling of 1149231 in words is "one million, one hundred forty-nine thousand, two hundred thirty-one".