145426205 has 8 divisors (see below), whose sum is σ = 174646104. Its totient is φ = 116251200.

The previous prime is 145426201. The next prime is 145426219. The reversal of 145426205 is 502624541.

It can be written as a sum of positive squares in 4 ways, for example, as 53304601 + 92121604 = 7301^2 + 9598^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145426205 - 2² = 145426201 is a prime.

It is a super-2 number, since 2×145426205² = 42297562201404050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145426201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3626 + ... + 17435.

It is an arithmetic number, because the mean of its divisors is an integer number (21830763).

Almost surely, 2^145426205 is an apocalyptic number.

It is an amenable number.

145426205 is a deficient number, since it is larger than the sum of its proper divisors (29219899).

145426205 is a wasteful number, since it uses less digits than its factorization.

145426205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22447.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 145426205 is about 12059.2787926973. The cubic root of 145426205 is about 525.8730206195.

The spelling of 145426205 in words is "one hundred forty-five million, four hundred twenty-six thousand, two hundred five".