1764146749 has 2 divisors, whose sum is σ = 1764146750. Its totient is φ = 1764146748.

The previous prime is 1764146743. The next prime is 1764146777. The reversal of 1764146749 is 9476414671.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1246584249 + 517562500 = 35307^2 + 22750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1764146749 is a prime.

It is a super-2 number, since 2×1764146749² = 6224427504014538002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1764146743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 882073374 + 882073375.

It is an arithmetic number, because the mean of its divisors is an integer number (882073375).

Almost surely, 2^1764146749 is an apocalyptic number.

It is an amenable number.

1764146749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1764146749 is an equidigital number, since it uses as much as digits as its factorization.

1764146749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 1764146749 is about 42001.7469755723. The cubic root of 1764146749 is about 1208.3096285840.

The spelling of 1764146749 in words is "one billion, seven hundred sixty-four million, one hundred forty-six thousand, seven hundred forty-nine".