145201605 has 16 divisors (see below), whose sum is σ = 235265280. Its totient is φ = 76459968.

The previous prime is 145201601. The next prime is 145201619. The reversal of 145201605 is 506102541.

145201605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145201605 - 2² = 145201601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145201601) 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, 60082 + ... + 62451.

It is an arithmetic number, because the mean of its divisors is an integer number (14704080).

Almost surely, 2^145201605 is an apocalyptic number.

145201605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145201605 is a deficient number, since it is larger than the sum of its proper divisors (90063675).

145201605 is a wasteful number, since it uses less digits than its factorization.

145201605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122620.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 145201605 is about 12049.9628630133. The cubic root of 145201605 is about 525.6021571547.

The spelling of 145201605 in words is "one hundred forty-five million, two hundred one thousand, six hundred five".