145125005 has 8 divisors (see below), whose sum is σ = 184394232. Its totient is φ = 109270528.

The previous prime is 145124927. The next prime is 145125017. The reversal of 145125005 is 500521541.

It is a happy number.

145125005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14845609 + 130279396 = 3853^2 + 11414^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145125005 - 2¹⁰ = 145123981 is a prime.

It is a super-2 number, since 2×145125005² = 42122534152500050, which 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 7 ways as a sum of consecutive naturals, for example, 853592 + ... + 853761.

It is an arithmetic number, because the mean of its divisors is an integer number (23049279).

Almost surely, 2^145125005 is an apocalyptic number.

It is an amenable number.

145125005 is a deficient number, since it is larger than the sum of its proper divisors (39269227).

145125005 is a wasteful number, since it uses less digits than its factorization.

145125005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707375.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 145125005 is about 12046.7840106810. The cubic root of 145125005 is about 525.5097150931.

Adding to 145125005 its reverse (500521541), we get a palindrome (645646546).

The spelling of 145125005 in words is "one hundred forty-five million, one hundred twenty-five thousand, five".