1181434 has 4 divisors (see below), whose sum is σ = 1772154. Its totient is φ = 590716.

The previous prime is 1181413. The next prime is 1181437. The reversal of 1181434 is 4341811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4341811 = 1049 ⋅4139.

It can be written as a sum of positive squares in only one way, i.e., 815409 + 366025 = 903^2 + 605^2 .

It is not an unprimeable number, because it can be changed into a prime (1181437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 295357 + ... + 295360.

2^1181434 is an apocalyptic number.

1181434 is a deficient number, since it is larger than the sum of its proper divisors (590720).

1181434 is an equidigital number, since it uses as much as digits as its factorization.

1181434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590719.

The product of its digits is 384, while the sum is 22.

The square root of 1181434 is about 1086.9379007101. The cubic root of 1181434 is about 105.7149693858.

The spelling of 1181434 in words is "one million, one hundred eighty-one thousand, four hundred thirty-four".