397163145 has 8 divisors (see below), whose sum is σ = 635461056. Its totient is φ = 211820336.

The previous prime is 397163111. The next prime is 397163147. The reversal of 397163145 is 541361793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397163145 - 2⁷ = 397163017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397163147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13238757 + ... + 13238786.

It is an arithmetic number, because the mean of its divisors is an integer number (79432632).

Almost surely, 2^397163145 is an apocalyptic number.

It is an amenable number.

397163145 is a deficient number, since it is larger than the sum of its proper divisors (238297911).

397163145 is a wasteful number, since it uses less digits than its factorization.

397163145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26477551.

The product of its digits is 68040, while the sum is 39.

The square root of 397163145 is about 19928.9524310737. The cubic root of 397163145 is about 735.0603217650.

The spelling of 397163145 in words is "three hundred ninety-seven million, one hundred sixty-three thousand, one hundred forty-five".