1355084749 has 2 divisors, whose sum is σ = 1355084750. Its totient is φ = 1355084748.

The previous prime is 1355084723. The next prime is 1355084873. The reversal of 1355084749 is 9474805531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1289312649 + 65772100 = 35907^2 + 8110^2 .

It is an emirp because it is prime and its reverse (9474805531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1355084749 - 2¹⁵ = 1355051981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1355084699 and 1355084708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355084149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677542374 + 677542375.

It is an arithmetic number, because the mean of its divisors is an integer number (677542375).

Almost surely, 2^1355084749 is an apocalyptic number.

It is an amenable number.

1355084749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355084749 is an equidigital number, since it uses as much as digits as its factorization.

1355084749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 1355084749 is about 36811.4757786210. The cubic root of 1355084749 is about 1106.5952944951.

The spelling of 1355084749 in words is "one billion, three hundred fifty-five million, eighty-four thousand, seven hundred forty-nine".