145305140235205 has 32 divisors (see below), whose sum is σ = 186163471874304. Its totient is φ = 108641944705536.

The previous prime is 145305140235139. The next prime is 145305140235221. The reversal of 145305140235205 is 502532041503541.

It is a cyclic number.

It is not a de Polignac number, because 145305140235205 - 2⁷ = 145305140235077 is a prime.

It is a super-2 number, since 2×145305140235205² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79982734 + ... + 81779263.

It is an arithmetic number, because the mean of its divisors is an integer number (5817608496072).

Almost surely, 2^{145305140235205} is an apocalyptic number.

It is an amenable number.

145305140235205 is a deficient number, since it is larger than the sum of its proper divisors (40858331639099).

145305140235205 is a wasteful number, since it uses less digits than its factorization.

145305140235205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161762205.

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 145305140235205 its reverse (502532041503541), we get a palindrome (647837181738746).

The spelling of 145305140235205 in words is "one hundred forty-five trillion, three hundred five billion, one hundred forty million, two hundred thirty-five thousand, two hundred five".