1118629 has 2 divisors, whose sum is σ = 1118630. Its totient is φ = 1118628.

The previous prime is 1118599. The next prime is 1118653. The reversal of 1118629 is 9268111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 16129 = 1050^2 + 127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118629 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1118597 and 1118606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559314 + 559315.

It is an arithmetic number, because the mean of its divisors is an integer number (559315).

2^1118629 is an apocalyptic number.

It is an amenable number.

1118629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118629 is an equidigital number, since it uses as much as digits as its factorization.

1118629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 28.

The square root of 1118629 is about 1057.6525894640. The cubic root of 1118629 is about 103.8074902742.

The spelling of 1118629 in words is "one million, one hundred eighteen thousand, six hundred twenty-nine".