1652871461 has 4 divisors (see below), whose sum is σ = 1750099212. Its totient is φ = 1555643712.

The previous prime is 1652871457. The next prime is 1652871463. The reversal of 1652871461 is 1641782561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1641782561 = 13007 ⋅126223.

It can be written as a sum of positive squares in 2 ways, for example, as 1293768961 + 359102500 = 35969^2 + 18950^2 .

It is a cyclic number.

It is not a de Polignac number, because 1652871461 - 2² = 1652871457 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 (1652871463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48613850 + ... + 48613883.

It is an arithmetic number, because the mean of its divisors is an integer number (437524803).

Almost surely, 2^1652871461 is an apocalyptic number.

It is an amenable number.

1652871461 is a deficient number, since it is larger than the sum of its proper divisors (97227751).

1652871461 is an equidigital number, since it uses as much as digits as its factorization.

1652871461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97227750.

The product of its digits is 80640, while the sum is 41.

The square root of 1652871461 is about 40655.5219004750. The cubic root of 1652871461 is about 1182.3508293968.

Subtracting from 1652871461 its reverse (1641782561), we obtain a square (11088900 = 3330²).

The spelling of 1652871461 in words is "one billion, six hundred fifty-two million, eight hundred seventy-one thousand, four hundred sixty-one".