162773145 has 20 divisors (see below), whose sum is σ = 291786660. Its totient is φ = 86812128.

The previous prime is 162773131. The next prime is 162773159. The reversal of 162773145 is 541377261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (162773131) and next prime (162773159).

It can be written as a sum of positive squares in 2 ways, for example, as 51322896 + 111450249 = 7164^2 + 10557^2 .

It is not a de Polignac number, because 162773145 - 2⁴ = 162773129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 200550 + ... + 201359.

It is an arithmetic number, because the mean of its divisors is an integer number (14589333).

Almost surely, 2^162773145 is an apocalyptic number.

162773145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162773145 is a deficient number, since it is larger than the sum of its proper divisors (129013515).

162773145 is an equidigital number, since it uses as much as digits as its factorization.

162773145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401926 (or 401917 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 162773145 is about 12758.2579139944. The cubic root of 162773145 is about 546.0020226951.

The spelling of 162773145 in words is "one hundred sixty-two million, seven hundred seventy-three thousand, one hundred forty-five".