1206749 has 2 divisors, whose sum is σ = 1206750. Its totient is φ = 1206748.

The previous prime is 1206743. The next prime is 1206761. The reversal of 1206749 is 9476021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194649 + 12100 = 1093^2 + 110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1206749 is a prime.

It is a plaindrome in base 13 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1206743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603374 + 603375.

It is an arithmetic number, because the mean of its divisors is an integer number (603375).

2^1206749 is an apocalyptic number.

It is an amenable number.

1206749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206749 is an equidigital number, since it uses as much as digits as its factorization.

1206749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1206749 is about 1098.5212788107. The cubic root of 1206749 is about 106.4647035641.

The spelling of 1206749 in words is "one million, two hundred six thousand, seven hundred forty-nine".