165481197 has 16 divisors (see below), whose sum is σ = 252375552. Its totient is φ = 94480560.

The previous prime is 165481123. The next prime is 165481229. The reversal of 165481197 is 791184561.

It is not a de Polignac number, because 165481197 - 2¹⁴ = 165464813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165481597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29578 + ... + 34724.

It is an arithmetic number, because the mean of its divisors is an integer number (15773472).

Almost surely, 2^165481197 is an apocalyptic number.

It is an amenable number.

165481197 is a deficient number, since it is larger than the sum of its proper divisors (86894355).

165481197 is a wasteful number, since it uses less digits than its factorization.

165481197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6688.

The product of its digits is 60480, while the sum is 42.

The square root of 165481197 is about 12863.9495101621. The cubic root of 165481197 is about 549.0133241181.

The spelling of 165481197 in words is "one hundred sixty-five million, four hundred eighty-one thousand, one hundred ninety-seven".