755142247 has 2 divisors, whose sum is σ = 755142248. Its totient is φ = 755142246.

The previous prime is 755142209. The next prime is 755142257. The reversal of 755142247 is 742241557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 755142247 - 2¹⁹ = 754617959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (755142257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377571123 + 377571124.

It is an arithmetic number, because the mean of its divisors is an integer number (377571124).

Almost surely, 2^755142247 is an apocalyptic number.

755142247 is a deficient number, since it is larger than the sum of its proper divisors (1).

755142247 is an equidigital number, since it uses as much as digits as its factorization.

755142247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78400, while the sum is 37.

The square root of 755142247 is about 27479.8516553492. The cubic root of 755142247 is about 910.6320316430.

The spelling of 755142247 in words is "seven hundred fifty-five million, one hundred forty-two thousand, two hundred forty-seven".