397151 has 2 divisors, whose sum is σ = 397152. Its totient is φ = 397150.

The previous prime is 397127. The next prime is 397153. The reversal of 397151 is 151793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397151 - 2¹⁸ = 135007 is a prime.

Together with 397153, 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 397151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198575 + 198576.

It is an arithmetic number, because the mean of its divisors is an integer number (198576).

2³⁹⁷¹⁵¹ is an apocalyptic number.

397151 is a deficient number, since it is larger than the sum of its proper divisors (1).

397151 is an equidigital number, since it uses as much as digits as its factorization.

397151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 945, while the sum is 26.

The square root of 397151 is about 630.1991748646. The cubic root of 397151 is about 73.5052829127.

The spelling of 397151 in words is "three hundred ninety-seven thousand, one hundred fifty-one".