1571305240145 has 8 divisors (see below), whose sum is σ = 1902865062120. Its totient is φ = 1245511676160.

The previous prime is 1571305240121. The next prime is 1571305240157. The reversal of 1571305240145 is 5410425031751.

It can be written as a sum of positive squares in 4 ways, for example, as 4144269376 + 1567160970769 = 64376^2 + 1251863^2 .

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

It is not a de Polignac number, because 1571305240145 - 2¹⁰ = 1571305239121 is a prime.

It is a super-2 number, since 2×1571305240145² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1571305240099 and 1571305240108.

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, 1441563896 + ... + 1441564985.

It is an arithmetic number, because the mean of its divisors is an integer number (237858132765).

Almost surely, 2^{1571305240145} is an apocalyptic number.

It is an amenable number.

1571305240145 is a deficient number, since it is larger than the sum of its proper divisors (331559821975).

1571305240145 is a wasteful number, since it uses less digits than its factorization.

1571305240145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883128995.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 1571305240145 in words is "one trillion, five hundred seventy-one billion, three hundred five million, two hundred forty thousand, one hundred forty-five".