146172165 has 32 divisors (see below), whose sum is σ = 240091776. Its totient is φ = 75912960.

The previous prime is 146172139. The next prime is 146172193. The reversal of 146172165 is 561271641.

It is not a de Polignac number, because 146172165 - 2⁹ = 146171653 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97159 + ... + 98651.

It is an arithmetic number, because the mean of its divisors is an integer number (7502868).

Almost surely, 2^146172165 is an apocalyptic number.

146172165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146172165 is a deficient number, since it is larger than the sum of its proper divisors (93919611).

146172165 is a wasteful number, since it uses less digits than its factorization.

146172165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669.

The product of its digits is 10080, while the sum is 33.

The square root of 146172165 is about 12090.1681129751. The cubic root of 146172165 is about 526.7706383330.

The spelling of 146172165 in words is "one hundred forty-six million, one hundred seventy-two thousand, one hundred sixty-five".