145531625005 has 8 divisors (see below), whose sum is σ = 188071638552. Its totient is φ = 107469507648.

The previous prime is 145531625003. The next prime is 145531625023. The reversal of 145531625005 is 500526135541.

It is a happy number.

145531625005 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 12356990244 + 133174634761 = 111162^2 + 364931^2 .

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 145531625005 - 2¹ = 145531625003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145531625003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119473974 + ... + 1119474103.

It is an arithmetic number, because the mean of its divisors is an integer number (23508954819).

Almost surely, 2^145531625005 is an apocalyptic number.

It is an amenable number.

145531625005 is a deficient number, since it is larger than the sum of its proper divisors (42540013547).

145531625005 is a wasteful number, since it uses less digits than its factorization.

145531625005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238948095.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 145531625005 in words is "one hundred forty-five billion, five hundred thirty-one million, six hundred twenty-five thousand, five".