397501141 has 2 divisors, whose sum is σ = 397501142. Its totient is φ = 397501140.

The previous prime is 397501037. The next prime is 397501201. The reversal of 397501141 is 141105793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362750116 + 34751025 = 19046^2 + 5895^2 .

It is a cyclic number.

It is not a de Polignac number, because 397501141 - 2⁹ = 397500629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397502141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198750570 + 198750571.

It is an arithmetic number, because the mean of its divisors is an integer number (198750571).

Almost surely, 2^397501141 is an apocalyptic number.

It is an amenable number.

397501141 is a deficient number, since it is larger than the sum of its proper divisors (1).

397501141 is an equidigital number, since it uses as much as digits as its factorization.

397501141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 397501141 is about 19937.4306519170. The cubic root of 397501141 is about 735.2687810229.

The spelling of 397501141 in words is "three hundred ninety-seven million, five hundred one thousand, one hundred forty-one".