145403205 has 16 divisors (see below), whose sum is σ = 232948224. Its totient is φ = 77447360.

The previous prime is 145403197. The next prime is 145403207. The reversal of 145403205 is 502304541.

It is not a de Polignac number, because 145403205 - 2³ = 145403197 is a prime.

It is a super-2 number, since 2×145403205² = 42284184048544050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145403207) 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 15 ways as a sum of consecutive naturals, for example, 6412 + ... + 18218.

It is an arithmetic number, because the mean of its divisors is an integer number (14559264).

Almost surely, 2^145403205 is an apocalyptic number.

145403205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145403205 is a deficient number, since it is larger than the sum of its proper divisors (87545019).

145403205 is a wasteful number, since it uses less digits than its factorization.

145403205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12636.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145403205 is about 12058.3251324552. The cubic root of 145403205 is about 525.8452958657.

Adding to 145403205 its reverse (502304541), we get a palindrome (647707746).

The spelling of 145403205 in words is "one hundred forty-five million, four hundred three thousand, two hundred five".