145121398064641 has 8 divisors (see below), whose sum is σ = 149058109511424. Its totient is φ = 141185450381040.

The previous prime is 145121398064639. The next prime is 145121398064663. The reversal of 145121398064641 is 146460893121541.

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 145121398064641 - 2¹ = 145121398064639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145121398064441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190555615 + ... + 191315668.

It is an arithmetic number, because the mean of its divisors is an integer number (18632263688928).

Almost surely, 2^{145121398064641} is an apocalyptic number.

It is an amenable number.

145121398064641 is a deficient number, since it is larger than the sum of its proper divisors (3936711446783).

145121398064641 is a wasteful number, since it uses less digits than its factorization.

145121398064641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381881591.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 145121398064641 in words is "one hundred forty-five trillion, one hundred twenty-one billion, three hundred ninety-eight million, sixty-four thousand, six hundred forty-one".