145012255505 has 32 divisors (see below), whose sum is σ = 192243093504. Its totient is φ = 104331338496.

The previous prime is 145012255471. The next prime is 145012255511. The reversal of 145012255505 is 505552210541.

It is a cyclic number.

It is not a de Polignac number, because 145012255505 - 2¹⁸ = 145011993361 is a prime.

It is a Duffinian 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, 1044272 + ... + 1174958.

It is an arithmetic number, because the mean of its divisors is an integer number (6007596672).

Almost surely, 2^145012255505 is an apocalyptic number.

It is an amenable number.

145012255505 is a deficient number, since it is larger than the sum of its proper divisors (47230837999).

145012255505 is a wasteful number, since it uses less digits than its factorization.

145012255505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131145.

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 145012255505 in words is "one hundred forty-five billion, twelve million, two hundred fifty-five thousand, five hundred five".