145615642593 has 8 divisors (see below), whose sum is σ = 194305996800. Its totient is φ = 97001191728.

The previous prime is 145615642577. The next prime is 145615642603. The reversal of 145615642593 is 395246516541.

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

It is not a de Polignac number, because 145615642593 - 2⁴ = 145615642577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145615642793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18971358 + ... + 18979031.

It is an arithmetic number, because the mean of its divisors is an integer number (24288249600).

Almost surely, 2^145615642593 is an apocalyptic number.

It is an amenable number.

145615642593 is a deficient number, since it is larger than the sum of its proper divisors (48690354207).

145615642593 is a wasteful number, since it uses less digits than its factorization.

145615642593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37951671.

The product of its digits is 3888000, while the sum is 51.

The spelling of 145615642593 in words is "one hundred forty-five billion, six hundred fifteen million, six hundred forty-two thousand, five hundred ninety-three".