145740164 has 12 divisors (see below), whose sum is σ = 255507084. Its totient is φ = 72738144.

The previous prime is 145740157. The next prime is 145740181. The reversal of 145740164 is 461047541.

It can be written as a sum of positive squares in 2 ways, for example, as 23814400 + 121925764 = 4880^2 + 11042^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145740164.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30479 + ... + 34934.

It is an arithmetic number, because the mean of its divisors is an integer number (21292257).

Almost surely, 2^145740164 is an apocalyptic number.

It is an amenable number.

145740164 is a deficient number, since it is larger than the sum of its proper divisors (109766920).

145740164 is a wasteful number, since it uses less digits than its factorization.

145740164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65974 (or 65972 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 145740164 is about 12072.2890952793. The cubic root of 145740164 is about 526.2511823987.

The spelling of 145740164 in words is "one hundred forty-five million, seven hundred forty thousand, one hundred sixty-four".