1148743 has 4 divisors (see below), whose sum is σ = 1150888. Its totient is φ = 1146600.

The previous prime is 1148737. The next prime is 1148747. The reversal of 1148743 is 3478411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148743 is a prime.

It is a super-2 number, since 2×1148743² = 2639220960098, which contains 22 as substring.

It is a Duffinian number.

1148743 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148747) 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, 505 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (287722).

2^1148743 is an apocalyptic number.

1148743 is a deficient number, since it is larger than the sum of its proper divisors (2145).

1148743 is a wasteful number, since it uses less digits than its factorization.

1148743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144.

The product of its digits is 2688, while the sum is 28.

The square root of 1148743 is about 1071.7942899643. The cubic root of 1148743 is about 104.7307690596.

It can be divided in two parts, 1148 and 743, that added together give a triangular number (1891 = T₆₁).

The spelling of 1148743 in words is "one million, one hundred forty-eight thousand, seven hundred forty-three".