145400205 has 16 divisors (see below), whose sum is σ = 233256960. Its totient is φ = 77341248.

The previous prime is 145400183. The next prime is 145400209. The reversal of 145400205 is 502004541.

It is not a de Polignac number, because 145400205 - 2⁸ = 145399949 is a prime.

It is a super-2 number, since 2×145400205² = 42282439228084050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145400209) 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, 6910 + ... + 18399.

It is an arithmetic number, because the mean of its divisors is an integer number (14578560).

Almost surely, 2^145400205 is an apocalyptic number.

145400205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145400205 is a deficient number, since it is larger than the sum of its proper divisors (87856755).

145400205 is a wasteful number, since it uses less digits than its factorization.

145400205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25700.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 145400205 is about 12058.2007364283. The cubic root of 145400205 is about 525.8416793780.

Adding to 145400205 its reverse (502004541), we get a palindrome (647404746).

The spelling of 145400205 in words is "one hundred forty-five million, four hundred thousand, two hundred five".