764553149 has 2 divisors, whose sum is σ = 764553150. Its totient is φ = 764553148.

The previous prime is 764553137. The next prime is 764553151. The reversal of 764553149 is 941355467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693268900 + 71284249 = 26330^2 + 8443^2 .

It is a cyclic number.

It is not a de Polignac number, because 764553149 - 2¹⁶ = 764487613 is a prime.

Together with 764553151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382276574 + 382276575.

It is an arithmetic number, because the mean of its divisors is an integer number (382276575).

Almost surely, 2^764553149 is an apocalyptic number.

It is an amenable number.

764553149 is a deficient number, since it is larger than the sum of its proper divisors (1).

764553149 is an equidigital number, since it uses as much as digits as its factorization.

764553149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 44.

The square root of 764553149 is about 27650.5542259102. The cubic root of 764553149 is about 914.3993186902.

The spelling of 764553149 in words is "seven hundred sixty-four million, five hundred fifty-three thousand, one hundred forty-nine".