146231165 has 4 divisors (see below), whose sum is σ = 175477404. Its totient is φ = 116984928.

The previous prime is 146231159. The next prime is 146231177. The reversal of 146231165 is 561132641.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111809476 + 34421689 = 10574^2 + 5867^2 .

It is a cyclic number.

It is not a de Polignac number, because 146231165 - 2²² = 142036861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14623112 + ... + 14623121.

It is an arithmetic number, because the mean of its divisors is an integer number (43869351).

Almost surely, 2^146231165 is an apocalyptic number.

It is an amenable number.

146231165 is a deficient number, since it is larger than the sum of its proper divisors (29246239).

146231165 is an equidigital number, since it uses as much as digits as its factorization.

146231165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29246238.

The product of its digits is 4320, while the sum is 29.

The square root of 146231165 is about 12092.6078659651. The cubic root of 146231165 is about 526.8415029125.

The spelling of 146231165 in words is "one hundred forty-six million, two hundred thirty-one thousand, one hundred sixty-five".