145788917205 has 64 divisors (see below), whose sum is σ = 241404641280. Its totient is φ = 75086113536.

The previous prime is 145788917191. The next prime is 145788917249. The reversal of 145788917205 is 502719887541.

It is a happy number.

It is not a de Polignac number, because 145788917205 - 2⁵ = 145788917173 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20708076 + ... + 20715114.

It is an arithmetic number, because the mean of its divisors is an integer number (3771947520).

Almost surely, 2^145788917205 is an apocalyptic number.

145788917205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145788917205 is a deficient number, since it is larger than the sum of its proper divisors (95615724075).

145788917205 is a wasteful number, since it uses less digits than its factorization.

145788917205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7450.

The product of its (nonzero) digits is 5644800, while the sum is 57.

The spelling of 145788917205 in words is "one hundred forty-five billion, seven hundred eighty-eight million, nine hundred seventeen thousand, two hundred five".