145205125245545 has 8 divisors (see below), whose sum is σ = 174247962557760. Its totient is φ = 116162892021040.

The previous prime is 145205125245527. The next prime is 145205125245611. The reversal of 145205125245545 is 545542521502541.

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

It is not a de Polignac number, because 145205125245545 - 2⁴⁰ = 144105613617769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145205125245493 and 145205125245502.

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, 150492941 + ... + 151454730.

It is an arithmetic number, because the mean of its divisors is an integer number (21780995319720).

Almost surely, 2^{145205125245545} is an apocalyptic number.

It is an amenable number.

145205125245545 is a deficient number, since it is larger than the sum of its proper divisors (29042837312215).

145205125245545 is an equidigital number, since it uses as much as digits as its factorization.

145205125245545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302043855.

The product of its (nonzero) digits is 8000000, while the sum is 50.

The spelling of 145205125245545 in words is "one hundred forty-five trillion, two hundred five billion, one hundred twenty-five million, two hundred forty-five thousand, five hundred forty-five".