755385149 has 2 divisors, whose sum is σ = 755385150. Its totient is φ = 755385148.

The previous prime is 755385139. The next prime is 755385173. The reversal of 755385149 is 941583557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 489205924 + 266179225 = 22118^2 + 16315^2 .

It is a cyclic number.

It is not a de Polignac number, because 755385149 - 2⁴ = 755385133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (755385139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377692574 + 377692575.

It is an arithmetic number, because the mean of its divisors is an integer number (377692575).

Almost surely, 2^755385149 is an apocalyptic number.

It is an amenable number.

755385149 is a deficient number, since it is larger than the sum of its proper divisors (1).

755385149 is an equidigital number, since it uses as much as digits as its factorization.

755385149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 47.

The square root of 755385149 is about 27484.2709381202. The cubic root of 755385149 is about 910.7296603261.

The spelling of 755385149 in words is "seven hundred fifty-five million, three hundred eighty-five thousand, one hundred forty-nine".