747651241 has 2 divisors, whose sum is σ = 747651242. Its totient is φ = 747651240.

The previous prime is 747651239. The next prime is 747651251. The reversal of 747651241 is 142156747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660695616 + 86955625 = 25704^2 + 9325^2 .

It is a cyclic number.

It is not a de Polignac number, because 747651241 - 2¹ = 747651239 is a prime.

Together with 747651239, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 747651241.

It is not a weakly prime, because it can be changed into another prime (747651221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373825620 + 373825621.

It is an arithmetic number, because the mean of its divisors is an integer number (373825621).

Almost surely, 2^747651241 is an apocalyptic number.

It is an amenable number.

747651241 is a deficient number, since it is larger than the sum of its proper divisors (1).

747651241 is an equidigital number, since it uses as much as digits as its factorization.

747651241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 747651241 is about 27343.2119729925. The cubic root of 747651241 is about 907.6108649880.

The spelling of 747651241 in words is "seven hundred forty-seven million, six hundred fifty-one thousand, two hundred forty-one".