163151397 has 48 divisors (see below), whose sum is σ = 264446208. Its totient is φ = 96391680.

The previous prime is 163151383. The next prime is 163151407. The reversal of 163151397 is 793151361.

163151397 is a `hidden beast` number, since 1 + 631 + 5 + 13 + 9 + 7 = 666.

It is not a de Polignac number, because 163151397 - 2⁶ = 163151333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163151797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 249523 + ... + 250175.

It is an arithmetic number, because the mean of its divisors is an integer number (5509296).

Almost surely, 2^163151397 is an apocalyptic number.

163151397 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

163151397 is a deficient number, since it is larger than the sum of its proper divisors (101294811).

163151397 is a wasteful number, since it uses less digits than its factorization.

163151397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 767 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 163151397 is about 12773.0731227845. The cubic root of 163151397 is about 546.4246284185.

Subtracting from 163151397 its sum of digits (36), we obtain a palindrome (163151361).

The spelling of 163151397 in words is "one hundred sixty-three million, one hundred fifty-one thousand, three hundred ninety-seven".