747156401 has 2 divisors, whose sum is σ = 747156402. Its totient is φ = 747156400.

The previous prime is 747156349. The next prime is 747156413. The reversal of 747156401 is 104651747.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394618225 + 352538176 = 19865^2 + 18776^2 .

It is an emirp because it is prime and its reverse (104651747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 747156401 - 2⁶ = 747156337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (747156491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373578200 + 373578201.

It is an arithmetic number, because the mean of its divisors is an integer number (373578201).

Almost surely, 2^747156401 is an apocalyptic number.

It is an amenable number.

747156401 is a deficient number, since it is larger than the sum of its proper divisors (1).

747156401 is an equidigital number, since it uses as much as digits as its factorization.

747156401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 747156401 is about 27334.1617943554. The cubic root of 747156401 is about 907.4105838687.

The spelling of 747156401 in words is "seven hundred forty-seven million, one hundred fifty-six thousand, four hundred one".