755481731 has 2 divisors, whose sum is σ = 755481732. Its totient is φ = 755481730.

The previous prime is 755481719. The next prime is 755481733. The reversal of 755481731 is 137184557.

It is a happy number.

755481731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-755481731 is a prime.

It is a super-2 number, since 2×755481731² = 1141505291749512722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 755481733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (755481733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377740865 + 377740866.

It is an arithmetic number, because the mean of its divisors is an integer number (377740866).

Almost surely, 2^755481731 is an apocalyptic number.

755481731 is a deficient number, since it is larger than the sum of its proper divisors (1).

755481731 is an equidigital number, since it uses as much as digits as its factorization.

755481731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 41.

The square root of 755481731 is about 27486.0279232922. The cubic root of 755481731 is about 910.7684733491.

The spelling of 755481731 in words is "seven hundred fifty-five million, four hundred eighty-one thousand, seven hundred thirty-one".